- Mic: Hands free speaker-function.

- Frequency Response:100Hz~20KHz

- Wireless operation Range:10 m

- Rechargeable Lithium Battery:600mAH, 3.7V

- Mini USB Charge,5V/0.5A

-Continuous Playing time:4-8 hours

-Speaker Sensitivity :85dB/W

-Sperker Dia : 40mm

-Speaker Impedance: 4ohm

-Speaker maximum input power :2W

- Line in 3.5mm audio cable

- Colors : Red , black

Certification:  CE,