Bluetooth Version:3.0.
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 :4.8V –5.2V DC.
Working Voltage:3.7V –4.2V DC.
Working Current:200MA.
Quiescent Current:>1UA.
Battery :1100MAH.
Antenna:Built in 

Wireless Bluetooth Input;
Audio Input; 
Handsfree ;Touch button;Stereo Sound;
TF card function;

Standard color:Black;other colors need custom-made

Packing :50 piece/ carton