1. Bluetooth Glasses Speaker: The dynamic driver, unique sound cavity design avoid hearing obstacles. The open-ear design helps you always pay attention to your surroundings, avoid danger and enjoy mu 2. Open-ear Solution: The solution allows you not only to listen to music, answer calls, but also to hear notifications from the glasses, while still listening to the world around you. 3. With Noise Cancelling Mic: This wireless Bluetooth 5.3 has a wide range of compatibility. Smart sungl