K3 Bone Conduction Bluetooth 5.0 Wireless Headphones Waterproof Headphones 16GB RAM(Blue) Tag-Screwdriver Set 4G: 15 square meters (standard:

4G: 15 square meters (standard: 10mw)

Clock backup power supply

noise canceling microphone makes you answer calls without reaching your phone

Never waste the battery and will it in fire

K3 Bone Conduction Bluetooth 5.0 Wireless Headphones Waterproof Headphones 16GB RAM(Blue) Tag-Screwdriver Set 4G: 15 square meters (standard:1. Material: Titanium alloy 2. Bluetooth version: 5. 0 3. Waterproof rating: IPX8 4. Battery capacity: 300 mA 5. 6 8 hours of continuous music + call 6. Bone conduction stereo sound 7. Weight: 32 grams 8. Size: about 14x2 cm Specification: Package Weight One Package Weight 0. 12kgs 0. 26lb One Package Size 10. 5cm * 6cm * 14. 5cm 4. 13inch * 2. 36inch * 5. 71inch Qty per Carton 252 Carton Weight 30. 00kgs 66. 14lb Carton Size 50cm * 50cm * 60cm 19.