bluetooth (BH500)

Size:52*23*9 mm (LWH) Weight: 16g Talking time upto 3 hours 
 
  Specifications:
Bluetooth cordless technology V1.2
Size:52*23*9 mm (LWH)
Weight: 16g
Talking time upto 3 hours
Standby time upto 200 hours
Frequency: 2.4GHz
Support Headset & Handsfree
Point to Point connection
Audio: 15 bits resolution, S/N>60dB
Output: 0 dBm (Class II)
Working currency:40mA / Standby time <0.5nA
Built-in rechargable LIION Battery of 170mAh
USB port charge power
Charge time: 2-3hours