Product Details:Bluetooth V2.0+EDR A2D, compatible for smartphone/pc/tablet etcPerfect stereo sound, 2pcs NdFeB magnet Dia(40mm)amplifiers, 50x90mm Vibrating diaphragm.Handsfree with MIC, setting to answer in-calling automatically. (Long pressing the MODE key to OPEN/CLOSE this function).Voice prompt to notice the status of the speaker. English/Chinese language.APP can install in Apple/Android system. Clock/FM/music including.Touching control. Swirling finger to adjust volume(clockwise-volume+ / anti-clockwise-volume -).Built in 1000mah battery for long time music/movie enjoying.(Up to 8 hours)TF card/AUX support.If you are a music-enthusiast looking for an exceptional listening experience wherever you go, always turn to quality audio devices that deliver clean and smooth sounds. Feed your thirst for music with a variety of home theater systems, portable speakers, headphones, earphones and more that you can the Consumer Electronics category. There are CD players, Bluetooth-capable earphones, headsets, and speakers too!