Bluetooth v2.0 compliant
Bluetooth Profile Supported:
A2DP (Advanced Audio Distribution Profile)
AVRCP (Audio Video Remote Control Profile)
HSP (Headset Profile)
HFP (Hands-free Profile)                                 
 
Built-in battery:3.7v/120mAh / Lithium//rechargeable SOUND
Frequency Response: 20 Hz - 20 KHz
Sample Rate: 48 KHz, 16 Bit
SPL (Sound Pressure Level): 105 dB @ 1 KHz
THD (Total Harmonic Distortion): 0.5 %
SNR (Signal to Noise Ratio): 85 dB

Radio
Carrier frequency: 2.4-2.480 GHz
Spread spectrum:FHSS
Modulation method:GFSK
Sensitivity:<0.1%BER@-80dBm
RF Output power:-6dBm to 4dBm