1. Upgraded version of the luxury stereo, 4 speakers, 3D stereo surround sound, the effect is absolutely stunning. 2. Support Bluetooth connection, fully compatible with most kinds of Bluetooth devices, wireless playback, please do whatever you want. 3. Support U disk playback. You can also play audio from your phone or other device over the audio cable. 4. Built-in for DSP sound processor, clear and no noise. 5. Easy to connect and easy to operate. 6. Watching TV at home is like watching a movie at a movie theater. It gives you a theater-level sound experience. 7. Microphone input slot 8. TWS Multi function ( Enable two speaker paired via bluetooth ) Key Specifications/Special Features: 1. Output Power: 5W x 2 2. Bluetooth Version: 5.0+EDR 3. Battery Capacity: 2000mAh 4. Working distance: up to 10m 5. Frequency Response: 100Hz-18KHz 6.