M17 Bluetooth 5.1 LED Display Screen Touch Waterproof Wireless Bluetooth Earphone with Charging Box Type-SDI Series Input Interface:B-Key/B&M-Key

Input Interface:B-Key/B&M-Key

Compatible: Windows XP / Vista / 7 / 8 / 10

reduce the time difference and distortion during transmission

Large capacity and long battery life

M17 Bluetooth 5.1 LED Display Screen Touch Waterproof Wireless Bluetooth Earphone with Charging Box Type-SDI Series Input Interface:B-Key/B&M-Key1. Bluetooth version: 5. 1 2. Headphone battery capacity: 50MAH 3. Storage box battery capacity: 2000MAH 4. Transmission distance: about 10m 5. Talk time: 4 hours 6. Play time: 4 hours 7. Charging time: 1 2h 8. IPX7 waterproof function 9. Ergonomic design, comfortable to wear Specification: Package Weight One Package Weight 0. 16kgs 0. 34lb One Package Size 12cm * 10cm * 5cm 4. 72inch * 3. 94inch * 1. 97inch Qty per Carton 100 Carton Weight 15. 10kgs