1.Transmit the stereo audio wirelessly, from non-Bluetooth audio sources(Phone, iPod, PC,eBook,MP3/MP4,CD/DVD player, TV etc.) to Bluetooth-enabled devices(BT speaker,BT headphone,BT  receiver etc.) 

2.Built-in 100 mah Li-battery,up to 4 hours working time

5.Working & Recharging can proseed simultaneously

7.Full charge takes about 2 hours.

8.Small sizes, strong compatibility & convenient opration 

Bluetooth Version: V4.2+EDR


Bluetooth Frequency:2402MHz-2480MHz


Output power Category: Class2


Bluetooth Distance:10-15m(free space)


Charging lnput：DC 5V


Built-in Battery: Li-Poly 100mah