Features:Advanced Bluetooth chip and circuit design,- Portable Bluetooth Speaker,built-in bluetooth wireless transmission, working distance up to 10 meters.- Support Hand-free when answer calling (with MIC), receive calls- Compatible with all Bluetooth devices such as smart phones, tablet PCs, iPOD …- Bluetooth chip, clear sound and perfect quality, powerful bass and can enjoy unfettered stereo music anytime.- Built in Lithium Battery 1200mAh, support rechargeable battery- Support playing MP3 songs stored in the TF card- wrap-around sound ensures that everyone enjoys good sound quality,provide an authentic, natural sound.