Lenovo X5 IPX8 Waterproof Bluetooth 5.0 Bone Conduction Wireless Earphones, Built-in 8G Memory (Black)

1. Bluetooth version: 5.0 2. Transmission distance: 10 meters 3. Battery capacity: 135mAh 4. Charging time: about 2 hours 5. Battery life: 6 hours 6. Built-in 8G memory, 1500+ songs large capacity storage 7. Transmit sound to the hearing through bone conduction, achieving the ideal effect of not damaging the eardrum 8. Effectively reduce sound leakage and take care of privacy 9. Ergonomic design, comfortable to wear 10. IPX8 deep waterproof 11. Memory titanium alloy frame, adapt to any distortion of the shape according to different head sizes 12. One-key operation, easy to use 13. Weight: 25g