1. Bluetooth version: 5.0 2. Charging interface: Micro USB 3. Headphone battery: 180mAh 4. Duration of use: 8-10h 5. Standby time: 40h 6. Transmission distance: 10m 7. Liquid silicone erection ring plus memory steel wire, which is skin-friendly and not easy to deform. 8. IPX4 sweat-proof rating, semi-in-ear design, comfortable to wear for a long time 9. High-fidelity calls and incoming call voice reporting function 10. Add a protective plate design to the battery to avoid bulging
