Wireless Sport Earphones Bluetooth Waterproof Headset Bone Conduction Headphones Measuring Tools just put 9v battery in

just put 9v battery in and switch the button on the back to “ON” then it can works

Can make about 15 fl oz ice cream in total

equipped with USB charging cable

*Wire specification: 12AWG

it can be easily stored in a computer bag

Wireless Sport Earphones Bluetooth Waterproof Headset Bone Conduction Headphones Measuring Tools just put 9v battery inWireless Sport Earphones Bluetooth Waterproof Headset Bone Conduction Headphones Description: Open Ear Design: The new type of earphones using bone conduction technology is different from others,uses cheekbone to spread sound waves. Designed to be slim, lightweight and comfortable for all day, everyday wear. Durable and Sweatproof: IPX5 rated waterproof, resistant to sweat, dust and moisture, it is the perfect workout companion for sports, fitness or