* The bluetooth speaker is made of PC + ABS material
* Supports on Handfree that connect with mobile phone, built-in microphone via speaker
* Supports on 4.1 Bluetooth within 10 m. of range
* Resistance : 4 ohm
* 7 hours long continuous music litsening
* Battery : 1,200 mAh 3.7 v.
* USB input : 5 v. 1 mAh
* Output : 5 w.