Sk-s10 bluetooth wireless mini speaker with tf,mic,build in mp3player expanded bxs( bases expansion system) drives a fuller, richer low-end response. Larger 45mm driver delivers precise highs for superb sound. Support a2dp,avrcp ,handfree profile. Compatible with bluetooth phones, mp3/mp4/cd/pc/mac/psp, etc. Bluetooth wireless mini speaker with microphone and build in mp3 player 1, play music from bluetooth devices including mobile phones, ipad and android tablets, mp3 players, pc or mac laptops 2, supports tf card (micro sd card) for playback from built-in mp3 player 3, built-in lithium battery 520mah, charging via usb 4, 3w speaker 5, support a2dp, avrcp, headset, hands free profile feature: 1. Bluetooth synchronous broadcasting function 2. Compatible with bluetooth phones, mp3/mp4/cd/pc/mac/psp, etc. 3. Built-in lithium battery. 4. Support tf card(mini micro card) 5. Support a2dp,avrcp,headset,handfree profile 6. Support hands free with noise cancellation and echo suppressionbrand name: sam horse brand