Built-in 1200mAh high capacity rechargeable lithium polymer,can be replenished via the micro USB charging port. Answer phone calls using the hands free function. Works with cell phones, iPhone, iPad, iPod, HTC, Samsung, Tablets,play audio from Laptops,PCs, Mp3 player, 3.5mm audio mini jack allows simple wired connectivity.
Playback time : 8 hours
Charging time: 3 hours