Description: TF\/Micro sd card support. Built-in rechargeable lithium battery. Powerful and clear sound in unique design. Bluetooth synchronous broadcasting function. Compatible with Bluetooth phones， MP3\/MP4\/CD\/PC\/MAC\/PSP， etc. Pairing with your iPhone， iPad and other smart phones， watching movies， playing games is the real enjoyment! Specifications: Support A2DP， AVRCP， headset， hands-free profile Bluetooth intelligent voice prompt built-in wireless microphone(handfree call) Bluetooth Range:Up to 40 m Speaker:(!#!amp!*!Phi;)45MM Loudspeaker Output:5w Frequency Response:40HZ-15KHz Signal-to-Noise:!#!amp!*!ge;98dB Distortion:!#!amp!*!le;0.5% Battery Charging Voltage:5V!#!amp!*!plusmn;0.5V Color:Black，White，Red，Blue，Yellow Speaker Weight:500g Working Time:3 hours Battery Charge Time:2.5hours Battery Voltage\/Capacity:1800mAh Packaging includes: 1 x Bluetooth Speaker 1 x USB charge cable