Airmate  Wireless Bluetooth Speaker, Portable 360 Degree Surround Sound outdoor Touch Screen Subwoofer Boombox speaker for Ipad, Iphone, Samsung, Huawei And Other Music Players (Slivery) Great sound : We configured four 2 inch speaker for M8,360 Degree full range phonate, shows more deep& wide range, let you enjoy your beautiful music anywhere and bring your eyes a luxury feast Stylish in appearance: M8 adopted fashion & cool touch button design, skillfully avoid being disharmony from embossing buttons. Touch button makes the whole device more noble and simplistic. Delicate chrome craft, exquisite touch feeling, youll love it at the first sight! Bluetooth 4.0: M8 Bluetooth 4.0 ensures longer transmission distance, more stable transmission performance, whether indoor or outdoor, you can keep control of the speaker, listing to your favorite music Built-in speakerphone and microphone, answering incoming calls easily, Composed double channel speaker ,feel the same sound at every angle, perfect sound 360 released. Long time to play: External power adapter Built in 3pcs 18650 large capacity battery, 4-6 hours working time. Enjoy yourselves anytime anywhere