Features: [Advanced BT Technology] Adopts high-end BT technology, transmission distance up to 10m, compatible with almost all BT-enabled devices, such as smartphones, tablet PC, laptops and more. [High-quality Sound] 20W loudspeaker brings more rich music layering, professionally tune the soundtrack, in-depth integration with new tuning techniques, has been designed to give your computer's built-in audio the boost it deserves. [Home Theater] Perfectly match for your TV to turn it into a complete entertainment system, especially best for home theater, enjoy the great and warm time with your family. [TF LINE IN Music Play] With TF card slot and 3.5mm audio port, support TF card music and line-in music play, making the soundbar a MP3 player and enjoy music anytime. [Large Capacity Batteries] Built-in rechargeable double 2200mAh * 2 lithium batteries provide up to 5 hours of playtime, 10 hours of talking time.