1. 100% Brand and high Quality. 2. Built in Bluetooth 4.2, compatible with most devices, the range is widely which can use it under 10m/33feet, you can play your favourited music as you like. 3. Upgraded version of the deluxe audio, 3D stereo surround sound, the effect is absolutely shocking. 4. Support TF Card playback. You can also play the audio of your phone or other device via the audio cable. 5. Built-in DSP sound processor with clear sound and no noise. 6. Rechargeable 2000mAh high capacity rechargeable battery for up to 4 hours of play time based on music volume.