FEATURES
* Digital class D amplifier

* High class Aluminum surface  

* Built-in li-ion battery

* Built-in Bluetooth receiver module ,with A2DP 

* LED power and charge indicators 

* Built-in 3.5mm audio input jack，connect you iPod/iPhone、any MP3/4/5、PSP  or Pottable CD...etc 

* Vacuum bass design provides surprising volume and bass response in a small space-saving stereo speaker    system that fits in your hand    

* Twist speakers to expand, use two speakers for stereo or a single speaker for mono

* Though they fit in the palm of your hand, it’s nice to have the convenience of a carry pouch