Version: V4.1;
Transmission distance:10 m;
Battery capacity: 60 mAH;
Stand-by time: 80 h;
Talk time/Play music: 5h;
Power input: DC 5V / 200 mA;
Charging time: 2 h;
Frequency range :2400.0 - 2483.5 MHz;  
Noise reduction: CVC6.0