SONY Overtoom Overtoom HB Amsterdam www.sony-overtoom.nl www.sonyplaza.nl tel. 020-6830993

DR-BT20NX

Type Driver unit Diaphragm Magnet Transmission range Playback frequency range Remote Function ON/OFF function Power ON indicator Microphone Type Effective frequency range Mute function Recharging time Battery / life Closed, Dynamic 9mm, dome type PET Neodymium 20-20,000 Hz 6-23,000 Hz Play/Stop/FF/FR Available Available Omni Directional, Electret Condensor Microphone 100-4,000 Hz Not available Approx 3H from empty to full 11H w/fully charged (Communication time). 100h when fully charged (Waiting time) Charging stand type Battery charge indication Power source Distortion rate Signal range (reception area) Cord Dimensions (WxHxD) in mm Remote control function Weight Bluetooth Specification Bluetooth Output Frequency band Modulation Method Bluetooth Compatible Profile Supplied accessories Cradle Charger Available Built-in Lithium ion rechargeable battery Less than 1% at 1 KHz Line of Sight 10 m Strap: 0.35m / Headphone Cord: 0.4m 22 x 51 x 30 (main unit) Play/Stop/FF/FR Unit (including earpieces) Approx 33g, Earpieces (not inlcuding cord) approx 4g. Bluetooth Version 2.0 Bluetooth Class 2 (2.5mW) 2.4 GHz band (2.402 GHz - 2.480 GHz) FHSS (Frequency Hopping Spread Spectrum) A2DP / AVRCP / HFP / HSP 1 x AC Adaptor 1 x Battery charging stand 1 x earphone holder Earpiece(S/M/L)

2-696-115-12(1)

Wireless Stereo Headset

Operating Instructions

DR-BT20NX

2006 Sony Corporation

WARNING
To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. To reduce the risk of electrical shock, do not open the cabinet. Refer servicing to qualified personnel only. Do not install the appliance in a confined space, such as a bookcase or built-in cabinet. To reduce the risk of fire, do not cover the ventilation of the apparatus with newspapers, tablecloths, curtains, etc. And do not place lighted candles on the apparatus. To reduce the risk of fire or electric shock, do not place objects filled with liquids, such as vases, on the apparatus. Connect the AC power adaptor to an easily accessible AC outlet. Should you notice an abnormality in the AC power adaptor, disconnect it from the AC outlet immediately. The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Sony Corporation is under license. Other trademarks and trade names are those of their respective owners. MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS and Thomson. Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems) This symbol on the product or on its packaging indicates that this product shall not be treated as household waste. Instead it shall be handed over to the applicable collection point for the recycling of electrical and electronic equipment. By ensuring this product is disposed of correctly, you will help prevent potential negative consequences for the environment and human health, which could otherwise be caused by inappropriate waste handling of this product. The recycling of materials will help to conserve natural resources. For more detailed information about recycling of this product, please contact your local Civic Office, your household waste disposal service or the shop where you purchased the product.
Hereby, Sony Corp., declares that this equipment is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC. For details, please access the following URL : http://www.compliance.sony.de/

Table Of Contents

Welcome!. 4
3 steps to BLUETOOTH function.. 5
Location and Function of Parts. 6 Charging the unit. 7 Pairing. 9
What is pairing?. 9 Procedures of pairing. 9
Wearing the headset. 11 Indications of BLUETOOTH function 12 Listening to music. 13
Controlling the audio device AVRCP.. 14

Calling.. 16

Controlling the BLUETOOTH mobile phone HFP, HSP. 18
Calling while playing back music. 19 Disposing of the unit.. 20 Precautions.. 21 What is BLUETOOTH technology?. 23 Troubleshooting. 24 Initializing the unit. 25 Specifications.. 26

Welcome!

Thank you for purchasing this Sony Wireless Stereo Headset. This unit uses BLUETOOTH wireless technology. You can enjoy music from your BLUETOOTH device capable of transmitting music. You can enjoy hands-free talking with your BLUETOOTH mobile phone inside your bag. You can remotely control the basic functions of BLUETOOTH audio device (Play, Pause, Stop, etc.). You can charge the unit using the supplied battery charging stand. For details on BLUETOOTH technology, see page 23.

Listening to music Talking on the phone
3 steps to BLUETOOTH function

Pairing

First, register (pair) a BLUETOOTH device (mobile phone, etc.) and this unit with each other. Once pairing is established, there is no need for pairing again.
BLUETOOTH mobile phone, etc.
Wireless Stereo Headset c Page 9
Listening to music BLUETOOTH connection
Operate the BLUETOOTH device to make the BLUETOOTH connection.
Calling BLUETOOTH connection
When the unit is turned on, the unit starts making the BLUETOOTH connection to the recognized mobile phone automatically.
Connection A2DP AVRCP c Page 13 HFP Connection HSP c Page 16

Listening to music

You can listen to music played on the BLUETOOTH device. Playback, stop, or pause is possible from this unit.

Talking on the phone

You can make and receive a call by operating this unit.

Music c Page 13 - 15

Voice c Page 17 - 19

GETTING STARTED

Location and Function of Parts

1 Jog switch

Adjusts the volume and controls various functions of the unit.
6 POWER button 7 Multi function button
Controls various call functions.
2 Microphone 3 Indicator (blue)
Indicates the communication status of the unit.

8 Indicator (red)

Indicates the power status of the unit.

9 Earpieces

4 Contact point 5 RESET button

Charging the unit

The unit contains a rechargeable Lithium-Ion battery, which should be charged before using for the first time.

1 Connect the supplied

AC power adaptor with the battery charging stand.
Battery charging stand (supplied) (Rear)

3 Put the unit on the

battery charging stand.

Contact pin

AC power adaptor (supplied)
Battery charging stand (supplied)

2 Connect the supplied

AC power adaptor to an AC outlet.
To an AC outlet Battery charging stand (supplied)
Rest the unit on the battery charging stand so that the units contact point meets the contact pin on the battery charging stand, and make sure that the indicator (red) lights up. Charging is completed in about 3 hours* and the indicator (red) goes off automatically.
* Time required for empty battery to recharge.
When charging the battery, the unit is turned off automatically.

Continued

Caution
If this unit detects a problem while charging, the indicator (red) may turn off, although charging is not complete. Check for the following causes: Ambient temperature exceeds the range of 0 C 40 C (32 F 104 F). There is a problem with the battery. In this case, charge again within the above-mentioned temperature range. If the problem persists, consult your nearest Sony dealer.
If the battery is not used for a long time, battery may be quickly depleted, however, after a few recharges, battery life will improve. If the life of the built-in rechargeable battery drops to half the normal length, the battery should be replaced. Consult your nearest Sony dealer for replacement of the rechargeable battery. Avoid exposure to temperature extremes, direct sunlight, moisture, sand, dust or mechanical shock. Never leave in a car parked in the sun. Use only the supplied AC power adaptor. Do not use any other AC power adaptor.
Checking the remaining battery
When pressing the POWER button while the unit is turned on, the indicator (red) flashes. You can check the remaining battery by the number of times the indicator (red) flashes. Indicator (red) 3 times 2 times 1 time Status Full Mid Low (needs to charge)
You cannot check the remaining battery immediately after the unit is turned on, or while pairing.
When the battery is almost empty
The indicator (red) flashes slowly automatically. When the battery becomes empty, a beep sounds and the unit will turn off automatically.

Usage hours*

Status Communication time (including music playback time) (up to) Standby time (up to) Approx. usage hours 11 hours

100 hours

* Time stated above may vary, depending on ambient temperature or conditions of use.

What is pairing?

BLUETOOTH devices need to be paired with each other beforehand. Once BLUETOOTH devices are paired, there is no need for pairing again, except in the following cases: Pairing information is deleted after repair, etc. This unit is paired with 9 or more devices. This unit can be paired with up to 8 devices; if a new device is paired after 8 devices have been paired, the device whose latest connection time is the oldest among the 8 paired devices is replaced by the new one. When recognition of the unit by the device to be connected is deleted. This unit is initialized. All pairing information is deleted.
Procedures of pairing 1 Place the connecting
device within 1 m (3 ft) of this unit.

2 Press and hold the

POWER button for 7 seconds or more to standby for pairing while the unit is turned off.

VOL VOL

After about 3 seconds, power is turned on and the indicator (blue) and indicator (red) flash together twice. Keep the button pressed without releasing until both indicators start flashing together, then release the button. This unit enters into pairing mode. If pairing is not established within about 5 minutes, pairing mode will be cancelled and this unit will turn off. In this case, start over from step 1.

3 Perform pairing

procedure on the connecting device to detect this unit.
The list of detected devices appears on the display of the connecting device. This unit is displayed as DR-BT20NX. If DR-BT20NX is not displayed, repeat from step 1.
When pairing with a BLUETOOTH device that cannot display a list of detected devices or that has no display
You may pair the device by setting both this unit and the connecting device to pairing mode. For details, refer to the operating instructions supplied with the connecting device.
To pair with other BLUETOOTH devices, repeat steps 1 to 5 for each device. To delete all pairing information, see Initializing the unit (page 25).

4 Select DR-BT20NX on

the display of the connecting device.

5 If Passcode* input is

required on the display of a connecting device, input 0000.
Pairing is complete when the indicator (blue) flashes slowly. The message standing for Pairing complete appears on the display of some BLUETOOTH devices.
* Passcode may be called Passkey, PIN code, PIN number, or Password.

6 Start the BLUETOOTH

connection from the BLUETOOTH device.
This unit memorizes the device as the latest connected device. Some BLUETOOTH devices may connect with the unit automatically when pairing is complete.

Wearing the headset

Place the neck strap around your neck, then wear the earpiece marked R in your right ear and the one marked L in your left ear. The neck strap prevents the earpieces from dropping.
How to install the earbuds correctly
If the earbuds do not fit your ears correctly, low-bass sound may not be heard. To enjoy better sound quality, adjust the earbuds position to sit on your ears comfortably or push them into the inside of your ears so that they fit your ears snugly. If the earbuds do not fit your ears, try ones of other size.
1 The right-side connector will uncouple for safety if excessive pressure is applied. 2 You can conveniently turn the left-side connector (turn lock) in the direction of the arrow and remove it when putting a strap around your neck. 3 When you remove the earpieces to wear around your neck, slide the cord adjusters toward the earpieces to prevent the cord from tangling.

How to use the holder

Store the earpieces. It prevents the cord from tangling if you store the earbuds.
Indications of BLUETOOTH function
B : Indicator (blue) R : Indicator (red)

Status

Searching Connectable Connecting

Flashing patterns

Connecting

B R B R R

Connected

HFP/HSP or A2DP B

(standby for receiving audio signal)

.

. . . .

HFP/HSP and A2DP B

R B R

Listening

Listening during standbyB for telephone call R Incoming call

B R B R

Talking

. .

Calling while B playing back music R

OPERATING THE UNIT

2 Make the BLUETOOTH

Jog switch

connection (A2DP) from a BLUETOOTH device to this unit.
Refer to the operating instructions supplied with the BLUETOOTH device on how to operate it.

3 Start playback on the

BLUETOOTH device.

POWER button Tip

BLUETOOTH connection of A2DP (Advanced Audio Distribution Profile) can also be operated with the jog switch from this unit to the BLUETOOTH device except when making a call on this unit.
Check the following before operating the unit. The BLUETOOTH device is turned on. Pairing of this unit and the BLUETOOTH device is complete. The BLUETOOTH device supports the transmitting music function (profile: A2DP).
When you play music by connecting the unit to a BLUETOOTH device using HSP (Headset Profile)*, sound quality will not be high. For better sound, change the BLUETOOTH connection to A2DP* by operating the BLUETOOTH device. * For detail on profiles, see page 23.

1 Press and hold the

POWER button for about 3 seconds while the unit is turned off.
The indicator (blue) and indicator (red) flash together twice and the unit is turned on.
Do not press and hold the POWER button for more than 7 seconds, otherwise pairing mode is entered.

To adjust the volume

Push the jog switch up or down to adjust the volume while listening to music.
When the volume level is low, raise the volume of the connected device. The sound will be clearer. Volume level for calling and listening to music can be set independently.

This unit will stop trying to connect to the BLUETOOTH mobile phone after 1 minute. In such a case, press the multi function button to try to connect again.

To call

Push the jog switch up or down to adjust the volume.
You cannot adjust the volume when not communicating. Volume level for calling and listening to music can be set independently.
1 Use the buttons on your
mobile phone when making a call.
If no sound is heard through this unit, press the multi function button.
You can call in the following way, depending on the BLUETOOTH mobile phone. Refer to the manual supplied with your mobile phone on operating details. When not communicating, you can call using the voice-dial function by pressing the multi function button. You can call a specific number by pressing the multi function button for about 2 seconds.

To terminate a call

You can end a call by pressing the multi function button on the unit.

1 Terminate BLUETOOTH

connection by the BLUETOOTH mobile phone.

To receive a call

When the telephone is ringing, ring tone will be heard through the unit.
POWER button for about 3 seconds to turn off the power.
1 Press the multi function

button on the unit.

The ring tone differs in the following ways, depending on your mobile phone. ring tone set on the unit ring tone set on the mobile phone ring tone set on the mobile phone only for BLUETOOTH connection
If you pressed the call button on the BLUETOOTH mobile phone, some BLUETOOTH mobile phones may have handset use priority. In this case, set to talk with the unit by pressing and holding the multi function button for about 2 seconds, or by operating the BLUETOOTH mobile phone. For details, refer to the manual supplied with your BLUETOOTH mobile phone.
Controlling the BLUETOOTH mobile phone HFP, HSP
The operation of the buttons on this unit varies depending on your mobile phone. HFP (Hands-free Profile) or HSP (Headset Profile) is used for BLUETOOTH mobile phone. Refer to the operating instructions supplied with your BLUETOOTH mobile phone on supported BLUETOOTH profiles or how to operate.

HFP (Hands-free Profile)

Status Standby Voice Dial active Multi function button Short Press Start Voice Dial Cancel Voice Dial Long Press Last number redial Reject Change active device
*1 Some functions may not be supported depending on the BLUETOOTH mobile phone. *2 This may vary, depending on the BLUETOOTH mobile phone. *3 Some functions may not be supported when calling using the BLUETOOTH mobile phone.
Outgoing call End outgoing call Incoming call During call Answer End call

HSP (Headset Profile)

Status Standby Multi function button Short Press Long Press Dial*1
Outgoing call End outgoing End outgoing call*1 call or change active device to headset*2 Incoming call During call Answer End call*3 Change active device to headset
Calling while playing back music
If the BLUETOOTH connection is active with the mobile phone, you can switch the unit to call even when listening to music. Before starting, see Calling (page 16) on operating details.
To call while playing back music
To receive a call while playing back music
The sound through the unit changes to a ring tone automatically.
button while playing back music (page 16), or operate your BLUETOOTH mobile phone to make a telephone call.
If no sound is heard through this unit, press and hold the multi function button for about 2 seconds.

button and talk.

After finishing the call, press the multi function button. This unit is switched back to music playback.
If the sound does not change to a ring tone automatically
1 Stop music playback. 2 When ringing, press the
multi function button and talk.

ADDITIONAL INFORMATION

Disposing of the unit
For environmental conservation, be sure to remove the built-in rechargeable batteries from the unit before disposing, and dispose of the batteries appropriately.

1 Remove 2 screws using

a cross-point screw driver as illustrated below.

2 Open the case and

remove the built-in rechargeable battery attached at the lid.

Battery

Dispose of the built-in rechargeable battery without detaching from the lid.
Forcibly detaching the built-in rechargeable battery is liable to damage it, and may be dangerous.

Precautions

On BLUETOOTH communication
BLUETOOTH wireless technology operates within a range of about 10 meters (about 30 feet). Maximum communication range may vary depending on obstacles (person, metal, wall, etc.) or electromagnetic environment. The aerial of this unit is built into the unit. The sensitivity of BLUETOOTH communication will improve by placing a connected BLUETOOTH device near the unit. The following conditions may affect the sensitivity of BLUETOOTH communication. There is an obstacle such as a person, metal, or wall between this unit and BLUETOOTH device. A device using 2.4 GHz frequency, such as a wireless LAN device, cordless telephone, or microwave oven, is in use near this unit. Because BLUETOOTH devices and wireless LAN (IEEE802.11b/g) use the same frequency, microwave interference may occur and resulting in communication speed deterioration, noise, or invalid connection if this unit is used near a wireless LAN device. In such as case, perform the following. Use this unit at least 10 m (about 30 ft) away from the wireless LAN device. If this unit is used within 10 m (about 30 ft) of a wireless LAN device, turn off the wireless LAN device. Install this unit and BLUETOOTH device as near to each other as possible.

Microwaves emitting from a BLUETOOTH device may affect the operation of electronic medical devices. Turn off this unit and other BLUETOOTH devices in the following locations, as it may cause an accident. where inflammable gas is present, in a hospital, train, airplane, or a petrol station near automatic doors or a fire alarm This unit supports security capabilities that comply with the BLUETOOTH standard to provide a secure connection when the BLUETOOTH wireless technology is used, but security may not be enough depending on the setting. Be careful when communicating using BLUETOOTH wireless technology. We do not take any responsibility for the leakage of information during BLUETOOTH communication. Connection with all BLUETOOTH devices cannot be guaranteed. A device featuring BLUETOOTH function is required to conform to the BLUETOOTH standard specified by BLUETOOTH SIG, and be authenticated. Even if the connected device conforms to the above mentioned BLUETOOTH standard, some devices may not be connected or work correctly, depending on the features or specifications of the device. While talking on the phone hands free, noise may occur, depending on the device or communication environment. Depending on the device to be connected, it may require some time to start communication.
On the supplied AC power adaptor
Use the AC power adaptor supplied with this unit. Do not use any other AC power adaptor since it may cause the unit to malfunction.

Polarity of the plug

If you are not going to use this unit for a long time, unplug the AC power adaptor from the AC outlet. To remove the AC power adaptor from the wall outlet, grasp the adaptor plug itself; never pull the cord.
If the earbuds become wet, wipe it with a dry towel before using. Clean the earbuds by hand-washing with a mild detergent solution. Remove the earbuds when you clean them. After cleaning, dry the earbuds well before use. The earbuds may deteriorate due to long-term storage or use. Do not strain the cord when adjusting the length, as it may be damaged. If you have any questions or problems concerning this unit that are not covered in this manual, please consult your nearest Sony dealer.

Others

Do not place this unit in a place exposed to humidity, dust, soot or steam, subject to direct sunlight, or in a car waiting at a traffic signal. It may cause a malfunction. Using the BLUETOOTH device may not function on mobile phones, depending on radio wave conditions and location where the equipment is being used. If you experience discomfort after using the BLUETOOTH device, stop using the BLUETOOTH device immediately. Should any problem persist, consult your nearest Sony dealer. Do not allow small children to use this unit. Do not use this unit in a place where it may be snagged, such as near a shredder, or machine facility, etc. The left and right connectors will uncouple for safety if excessive pressure is applied. To reduce the risk of this unit from falling, avoid excessive movement. Listening with this unit at high volume may affect your hearing. For traffic safety, do not use this unit while driving or cycling.

What is BLUETOOTH technology?
BLUETOOTH wireless technology is a short-range wireless technology that enables wireless data communication between digital devices, such as a computer or digital camera. BLUETOOTH wireless technology operates within a range of about 10 meters (about 30 feet). Connecting two devices as necessary is common, but some devices can be connected to multiple devices at the same time. You do not need to use a cable for connection since BLUETOOTH technology is a wireless technology, nor is it necessary for the devices to face one another, such is the case with infrared technology. For example, you can use such a device in a bag or pocket. BLUETOOTH technology is an international standard supported by millions of companies all over the world, and employed by various companies worldwide.
Communication System and Compatible BLUETOOTH Profiles of this unit
Profile is standardization of the function for each BLUETOOTH device specification. This unit supports the following BLUETOOTH version and profiles:
Communication System : BLUETOOTH Specification version 2.0 Compatible BLUETOOTH Profiles: A2DP (Advanced Audio Distribution Profile): Transmitting or receiving audio content of high-quality. AVRCP (Audio Video Remote Control Profile): Controlling A/V equipment; pausing, stopping, starting playback, volume control, etc. HSP (Headset Profile)*: Talking on the phone/Operating the phone. HFP (Hands-free Profile)*: Talking on the phone/Operating the phone by hands-free. * When you use a BLUETOOTH mobile phone supported by both HFP (Handsfree Profile) and HSP (Headset Profile), set to HFP.
To be able to use the BLUETOOTH function, the BLUETOOTH device to be connected requires the same profile as the units. Note also that even if the same profile exists, devices may vary in function depending on their specifications.

Troubleshooting

If you run into any problems using this unit, use the following checklist. Should any problem persist, consult your nearest Sony dealer.

Common

The unit is not turned on.
, Charge the battery of the unit. , The unit is not turned on while charging. Remove the unit from the battery charging stand and then turn on the unit.
The correspondence distance is short. (Sound skips.)

, If a device that generates electromagnetic radiation, such as a wireless LAN, other BLUETOOTH device(s), or a microwave oven is nearby, move away from such sources.

Pairing cannot be done.

, Bring this unit and the BLUETOOTH device closer together.
Cannot operate the unit. (Connection has hung up.)
, Press the RESET button. Pairing information is not deleted by this operation.
Cannot make the BLUETOOTH connection.
, Check that this unit is turned on. , Check that the BLUETOOTH connecting device is turned on and the BLUETOOTH function is on. , Connection with the BLUETOOTH device may not be memorized on this unit. Make the BLUETOOTH connection from the BLUETOOTH device to this unit soon after pairing is complete. , This unit or BLUETOOTH connecting device is in sleep mode. , The BLUETOOTH connection is terminated. Make the BLUETOOTH connection again.

When listening to music

No sound
, Check that both this unit and the BLUETOOTH device are turned on. , Check that both this unit and the BLUETOOTH device are making the BLUETOOTH connection, A2DP (Advanced Audio Distribution Profile). , Check that music is being played back by the BLUETOOTH device. , Check that the volume of the unit is not set too low. , Check that the volume of the BLUETOOTH device is not set too low if the BLUETOOTH device has a volume control. , Pair this unit and BLUETOOTH device again.

Distorted sound

, Ensure that this unit is not receiving interference from a wireless LAN, other 2.4 GHz wireless device, or microwave oven. , Re-position this unit.

Low sound level

, Turn up the volume of this unit. , Turn up the volume of the BLUETOOTH device if the BLUETOOTH device has a volume control.

Initializing the unit

You can reset this unit to its default (such as volume setting) and delete all pairing information.

Low sound quality

, Switch the BLUETOOTH connection to A2DP (Advanced Audio Distribution Profile) when HSP (Headset Profile) is set.

1 If this unit is turned on,
press and hold the POWER button for about 3 seconds to turn off this unit.

When calling

The recipients voice cannot be heard.
, Check that both this unit and the BLUETOOTH mobile phone are turned on. , Check the connection between this unit and the BLUETOOTH mobile phone. , Check that output of the BLUETOOTH mobile phone is set for this unit. , Check that the volume of the unit is not set too low. , Check that the volume of the BLUETOOTH mobile phone is not set too low if the BLUETOOTH mobile phone has a volume control. , If you are listening to music using this unit, stop playback, press the multi function button and talk.
POWER button and multi function button together for about 7 seconds.
The indicator (blue) and indicator (red) flash together four times, and this unit is reset to the default setting. All pairing information is deleted.

Low sound from recipient

, Turn up the volume of this unit. , Turn up the volume of the BLUETOOTH mobile phone if the BLUETOOTH mobile phone has a volume control.

Specifications

General
Communication System BLUETOOTH Specification version 2.0 Output BLUETOOTH Specification Power Class 2 Maximum communication range Line of sight approx. 10 m (30 ft) *1 Frequency band 2.4 GHz band (2.4000 GHz 2.4835 GHz) Modulation method FHSS Compatible BLUETOOTH Profiles*2 A2DP (Advanced Audio Distribution Profile) AVRCP (Audio Video Remote Control Profile) HSP (Headset Profile) HFP (Hands-free Profile) Supported Codecs*3 SBC*4, MP3 Supplied Accessories AC power adaptor (1), Battery charging stand (1), Earbuds (S 2, M 2, L 2), Holder (1) *1 The actual range will vary depending on factors such as obstacles between devices, magnetic fields around a microwave oven, static electricity, reception sensitivity, aerials performance, operating system, software application, etc. 2 * BLUETOOTH standard profiles indicate the purpose of BLUETOOTH communication between devices. *3 Codec: Audio signal compression and conversion format *4 Subband Codec

Headset

Power source DC 3.7 V: Built-in lithium-ion rechargeable battery Strap Approx. 0.35 m (13 7/8 in) Cord (from unit to earpiece) Approx. 0.4 m (15 3/4 in) Mass Mass: Approx. 33 g (1.17 oz) including strap and earpieces Earpieces: Approx. 4 g (0.15 oz) not including cord Rated power consumption 1.5 W

Receiver

Type Closed, dynamic Driver unit 9 mm dome type (CCAW adopted) Reproduction frequency range 20 20,000 Hz

Microphone

Type Omni directional, electret condenser Effective frequency range 100 4,000 Hz Design and specifications are subject to change without notice.

Printed in Malaysia