1. 100%  & high quality. <br />2. tf/micro sd card support.<br />3. built-in rechargeable lithium battery.<br />4. powerful and clear sound in unique design.<br />5. bluetooth synchronous broadcasting function.<br />6. compatible with bluetooth phones， mp3/mp4/cd/pc//psp， etc.<br />7. pairing with your ， ipad and other smart phones， watching movies，playing games is the real enjoyment! <br /><br />specifications:<br />support a2dp， avrcp， headset， hands-free profile<br />bluetooth version: v 2.1<br />bluetooth range: up to 10 m<br />speaker: (┵)45mm<br />loudspeaker output: 3w<br />frequency response: 280hz-16khz<br />signal-to-noise: ◎95db<br />distortion: ●0.5%<br />working time: 5 hours<br />battery charge time: 2hours<br />battery voltage/capacity: 520mah<br />battery charging voltage: 5v÷0.5v<br />color: black， white，gun metal，blue， red<br /><br />gross weight: 256g<br />speaker weight: 230g<br />dimension: 60x60x50mm<br /><br />packaging includes:<br />1 x bluetooth speaker<br />1 x usb 2 in 1 line(charge+audio)