Bluetooth Version: 3.0.                 
Bluetooth Talk Function
Frenquency: 2.402-2.480GHz.
MAX Power output:3W
MIC Sensitivity:-32db .
Receive Sensitivity:Better than -82dBm.
Range:10meters
Data Transmission:Up to 3Mbps
UART Data Transmission Rate:115200bps .
Charing Voltage :3.7V –4.2V DC.
Working Voltage:4.8V –5.5V DC.
Working Current:200MA.
Quiescent Current:>1UA.
Battery :450MAH.
Antenna:Built in

Function:
Wirless Bluetooth Input;
Audio Transmission ;
Handsfree function  ;
TF Card function;