K3 Bone Conduction Bluetooth 5.0 Wireless Headphones Waterproof Headphones 16GB RAM(Blue)

1. Material: Titanium alloy2. Bluetooth version: 5.03. Waterproof rating: IPX84. Battery capacity: 300 mA5. 6-8 hours of continuous music + call6. Bone conduction stereo sound7. Weight: 32 grams8. Size: about 14×2 cm