Features: BT Technology: Adopts BT 4.2 technology, supports all BT-enabled devices, offers the wireless range up to 10m and can easily pair with you almost all BT-enabled music devices. Surround Sound: Dual 5W speakers deliver high performance multi-dimensional sound and an unparalleled cinematic deep bass surround sound; let you enjoy high-quality music freely. Multifunctional: BT speaker also supports 3.5mm audio input for the audio devices without BT function, TF card U Disk music play, FM radio function and Hands-free with Mic. Endurance Time: Built-in rechargeable 1200mA Lithium battery supports 3-6 hours of music play time. It will automatically turn off if BT disconnected for more than 30 mins. Simple Operation: With big buttons, easy to control power on / off, playing/ pausing, volume +/-, previous / next track, answering / ending / redialing calls and switching modes.