Meet the Buhel SOUNDglass: a pair of sunglasses with bone conduction technology, allowing you to interact with your smart devices while hearing what goes on around you. These Bluetooth sunglasses can be used to receive phone calls, listen to music, and communicate with GPS systems. The battery life is good for 4 hours. The Buhel SOUNDglass set features a built-in microphone, a water resistant design, and a Bluetooth headset. You also get 3 anti-scratch lenses. You can find out more about them on Kickstarter.