1. Strong welding sound effect, super heavy bass. 2. Automatic search for Bluetooth, 10M and the following receiving distance. 3. Support MP3, WMA format music files. 4. Support TF card, Bluetooth band call, file playback, FM. 5. Support for external MP3/MP4/ input and other audio input functions (AUX). 6. Support series 1+17. 7. Stereoscopic acoustics and bass. 8. Waterproof cloth mesh technology and supports XP6 waterproof. 9. Jerry 4.2 Bluetooth scheme. 10. With mobile power supply.