1. Small and delicate to carry around 2. Mobile phone control: answer the call, hang up the call, play up, down, pause, volume up, volume down 3. Can be used for car music control, bicycle music control, motorcycle bicycle control, skiing. 4. IPX4 waterproof level 5. Bluetooth version: 5.0 7. Battery capacity: 450mAh 8. Working distance: 10M
