Features: Great Sound: Dual 5W horns deliver surround sound and an unparalleled cinematic deep bass with impressive volume. BT Connection: Easy to pair with your BT-enabled audio devices. Offers a wireless connection range of 10 meters. AUX IN Function: With a 3.5mm audio port, it is compatible with smartphone, laptop, MP3, MP4, TV, and other 3.5mm audio devices. Also supports TF card playback. Long Duration Time: Built-in rechargeable 2200mAh battery provides up to 8 hours of playtime and long time standby. Simple Operation: With a rotated button, very easy to operate power on/off, volume+/-. 3 buttons control music and call easily. Compact and Portable: Compact size with 2 anti-slip feet enables it to easily sit on the desk or on the floor. You can move it around from room to room. Note: TF Card is not included.