WAKEMAN Bone Conduction Glasses is a smart sunglasses with integrated bone conduction speakers that enable to transmit sound waves to the skull via vibrations. It is an amazing anti-sleep helper, especially useful for preventing drivers from sleeping on the highway. You just need shake your head to start the anti-sleep function. Connecting to your phone through Bluetooth, you can nod/shake your head to answer/reject phone call, control music or radio station. You can also use it to prevent dust, wind and UV ray.