2.1+EDR Mini Bluetooth Speaker for Mobile Phones,MP3,MP4,PSP,Laptop,Desktop X3 X3 Product Features1 ... time is up to 8-10 hours3, Support A2DP and AVRCP profile4, Excellent audio quality with Powerful base 5, ... :≤1.0% Playback Time :8 ~10 hoursCharging Time :3 to 4 hours Dimension (L×W×H) :80mm×80 mm ... X3 small speaker for bluetooth cell phone for Mobile Phones,MP3,MP4,PSP,Laptop,Desktop X3