Sony SRS-BTD70 マニュアル

Check that both this system and 

the connected device are turned 

on.

If you are connecting a personal 

computer to the system, make 

sure the audio output setting of 

the computer is set for a Bluetooth 

device.

Turn up the volume of the system 

and the connected device.

Pair this system and the Bluetooth 

device again.

Check that the connected device 

is being played back.

If the connected device is monaural, 

sound will only be output from the 

left speaker.

Check that both plugs of the 

connecting cord (supplied) are 

firmly inserted into the system 

and the connected device.

Turn down the volume of the 

connected device.

Keep the system away from a TV.

If the connected device has an 

equalizer function, set it to off.

If the POWER indicator (green) is 

flashing, replace all the batteries 

with new ones.

Keep the system away from a 

microwave oven, wireless LAN, 

etc.

If you connect a device with a built-

in radio or tuner to this system, 

broadcasts may not be received, or 

sensitivity may be reduced. Locate 

the system farther away from the 

device and check that you can listen 

to the broadcasts satisfactorily.

Bring this system and the 

Bluetooth device closer together. 

Remove any obstacle between 

this system and the Bluetooth 

device.

Bring this system and the 

Bluetooth device to within 1 m  

(3 ft) of each other.

Make sure pairing mode of the 

system is activated.

What is Bluetooth wireless 

Bluetooth wireless technology is a short-range wireless 

technology that enables wireless data communication between 

digital devices, such as a computer and digital camera. Bluetooth 

wireless technology operates within a range of about 10 m 

(about 30 ft).

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, 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 standard is an international standard supported by 

thousands of companies all over the world, and employed by 

various companies worldwide.

Bluetooth Profiles of the system

Profile is standardisation of the function for each Bluetooth 

device specification. The system supports the following 

Bluetooth version and profiles:

Communication System:

Bluetooth Specification version 3.0

Compatible Bluetooth Profiles:

A2DP (Advanced Audio Distribution Profile): Transmitting or 

receiving audio content of high-quality.

AVRCP (Audio Video Remote Control Profile): Controlling the 

sound volume.

Use Bluetooth devices within 10 m (about 30 ft) (line of sight) of 

the system.

Maximum communication range may shorten under the 

following conditions.

There is an obstacle such as a person, metal, or wall between 

the system and Bluetooth device.

A wireless LAN device is in use near the system.

A microwave oven is in use near the system.

A device that generates electromagnetic radiation is in use 

near the system.

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 the system is used near a wireless LAN device. In 

such a case, perform the following.

Use the system at least 10 m (about 30 ft) away from the 

wireless LAN device.

If the system is used within 10 m (about 30 ft) of a wireless 

LAN device, turn off the wireless LAN device.

Microwaves emitting from a Bluetooth device may affect the 

operation of electronic medical devices. Turn off the system 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 gas station

near automatic doors or a fire alarm

  To be able to use the Bluetooth function, the Bluetooth device 

to be connected requires the same profile as the system’s. 

Note also that even if the same profile exists, devices may vary 

in function depending on their specifications.

  Due to the characteristic of Bluetooth wireless technology, the 

sound played on the system is slightly delayed from the sound 

played on the Bluetooth device during talking on the 

telephone or listening to the music.

  This system 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.

  A device featuring the 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.

  Noise or sound skips may occur depending on the Bluetooth 

device connected with the system, the communication 

environment or the usage environment.

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Speaker system 

Satellite speaker: 28 mm (1 

1

/

8

 in.) 

Subwoofer: 40 mm (1 

5

/

8

 in.)

Enclosure type 

Satellite speaker: closed type 

Subwoofer: ASW (Acoustic Super Woofer) 

type

Reference output power 

Satellite speaker: 1.3 W + 1.3 W (10 % T.H.D.,  

1 kHz, 8 Ω) 

Subwoofer: 2.4 W (10 % T.H.D., 100 Hz, 3 Ω)

Input 

Stereo mini jack × 1

Communication System 

Bluetooth Specification version 3.0

Output 

Bluetooth Specification Power Class 2

Maximum communication range 

Line of sight approx. 10 m (about 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) 

VOLUME UP/DOWN

Supported Codec*

3

 

SBC*

4

Transmission range (A2DP) 

20 Hz - 20,000 Hz (Sampling frequency  

44.1 kHz)

*

1

 The actual range will vary depending on factors such as 

obstacles between devices, magnetic fields around a 

microwave oven, static electricity, reception sensitivity, aerial’s 

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

Power 

DC 5.2 V (when using the supplied AC 

adaptor connected to AC 100 V - 240 V power 

supply) 

Three LR6 (size AA) batteries

Rated power consumption 

1.8 W (when using the supplied AC adaptor) 

Approx. 0.2 W (in standby mode when using 

the supplied AC adaptor)

Battery life (when using the Bluetooth connection) 

Sony alkaline battery LR6 (size AA):  

approx. 13 hours*

5

 

Sony nickel metal hydride rechargeable 

battery NHAAB2K (size AA):  

approx. 15 hours*

5

Dimensions 

Approximately 206 mm × 63 mm × 77 mm  

(8 

1

/

8

 in. × 1 

1

/

2

 in. × 3 

1

/

8

 in.) (w/h/d)

Mass 

Approximately 620 g (1 lb. 6 oz.) including 

batteries

Supplied accessories 

AC adaptor (AC-E5212) (1) 

Connecting cord (1) 

Carrying pouch (1) 

Operating Instructions (this document) (1)

*

5

 Time may vary, depending on the temperature or conditions 

of use.

 Design and specifications are subject to change without notice.