Waterproof Bluetooth Bone Conduction Headphones Mic Sport Wireless Earphones Solar Power Supplies 1 x Watch Back Case

1 x Watch Back Case Cover Opener (other accessories demo in the picture is not included

Fit for 12VDC cars and motocycle

Shaft length: 17mm

Color: Blue + Red + Yellow

Suitable for M12

Waterproof Bluetooth Bone Conduction Headphones Mic Sport Wireless Earphones Solar Power Supplies 1 x Watch Back CaseITEM NAME: Waterproof Bluetooth Bone Conduction Headphones Mic Sport Wireless Earphones img *{margin: 0; padding: 0;. Bone Conduction Bone can transmit sound. The skull vibrates, sending the sound to the inner ear, which can also be heard. IP55 Waterproof: The bone conduction headset is resistant to sweat and rain, making exercises freely.