1. Comfortable & safe because of not in-ear design. 2. Intelligent algorithm sound effect to enhance bass. 3. Faster & more stable connection with latest wireless technology. 4. Clear communication with AI smart noise cancelling on 4 microphones 5. Long battery life of 30 hours working time 6. Good privacy protection & no sound leakage 7. No worry about sweat & rain with IPX5 waterproof 8. Born for sports with earhook design