M17 Bluetooth 5.1 LED Display Screen Touch Waterproof Wireless Bluetooth Earphone with Charging Box

1. Bluetooth version: 5.12. Headphone battery capacity: 50MAH3. Storage box battery capacity: 2000MAH4. Transmission distance: about 10m5. Talk time: 4 hours6. Play time: 4 hours7. Charging time: 1-2h8. IPX7 waterproof function9. Ergonomic design, comfortable to wear