Support Bluetooth 2.1 +EDR audio sources , hand free kit,TF card support,Volume control ，charge indication, status indication 

* Battery capacity：500MA                               

* Power Supply: DC 5 Volt 
* Output Power: 3w
* Driver Unit: 52mm ,4ohms,The inner magnetic
* Frequency Response: 100-18Khz                                         

* Bluetooth solution：RDA