Xtech Bluetooth Speaker Black

Continuous playing time: about 6 hours( varies by volume and audio content) Able to play audio source from laptop, computer, U disk,MP3,MP4 and SD/MMC card, from mobile phone Power supply: USB power Li-ion Battery Wireless Range: At least 33 feet Bluetooth or 3.5mm stereo input connection PC compatibility: Windows7 Vista XP mAC osx10.5 and higer Bluetooth 2.1 compliant Supports Enhanced Data Rate S/N: >80dB Frequency Response: 90Hz-20kHz Size: 220*71*35mm