The Bluetooth headset sunglasses have a built-in 160mAh polymer lithium battery, which can play music for 5-8 hours, or answer calls for more than 12 hours, allowing you to use it all day long. This solution not only allows you to listen to music, answer calls, and hear notifications through your glasses, but also listen to your surroundings. Our wireless Bluetooth 5.3 sunglasses are carefully designed to be waterproof and can easily resist sweat and rain. These glasses are great for sports, music, and phone calls. This wireless Bluetooth 5.3 has wide compatibility. Smart sunglasses have built-in noise-canceling microphones that allow you to make and receive calls. Therefore, these glasses are perfect for cycling, running, driving, boxing, fishing, playing basketball, shopping and other outdoor activities, and you can easily make calls.