User Manual

filter the noise outside the range of 1 meter, and it is suitable for noisy
environments.
3) BH520 can not only support the hands-free function of cell phones, but also let you
enjoy wireless high-quality music. Also, it allows you to switch the functions
between music and answering calls. When you are listening to music, you can
receive or dial out calls from Bluetooth phones with the headset. After you hang
up the phone, the music starts to play automatically.
4) The headset can be used to on the computer with supporting Bluetooth technology, ,
by which you can talk to other through network communications, such as QQ,
Skype, MSN, Messenger, or Yahoo, Messenger, etc..
Product specifications:
Product No.
：
BH520
Bluetooth version
：
CSR8615-V4.1 CLASS2
Frequency range
：
2.4GHz-2.480 GHz
Transmission distance
：
10M (The transmission distance differs with environment
factors and the Bluetooth device of mobile phone)
Work hours
：
12
小时
12 hours
Standby time
：
250
小时
250 hours
Support agreement
：
HFPV1.6
，
HSPV1.2
，
A2DPV1.2
，
AVRCPV1.4
Charging interface
：
Micro USB Battery Specification
：
Rechargeable lithium
battery
（
3.7V ,180mAH
）
Charging power supply
：
5VDC,100-240V AC adapter
Power rating
：
3MW
Sound track： Single track
Noise-signal ratio S/N
：
≥30DB
Frequency range：20Hz-20KHz
Distortion factor THD：≤1%
Speaker unit： external diameter 28mm
Microphone： one-direction noise-proof， impedance：2.2KΩ; sensitivity：40±3dB
Using temperature
：
Temperature: 0º C ~ 40º C
Humidity: 0% ~ 85% RH
torage environment
：
temperature: -30º C ~ 40º C
Humidity: 0% ~ 90% RH
Diagram of product function: