Sunglasses with built-in Bose speakers that produce rich, immersive sound for you, while others hear practically nothing, Open-ear audio allows you to stay aware of your surroundings, while enjoying your music, Bose Frames Alto feature a classic angular shape and commanding lenses. Lens width: 58 mm | Bridge width: 22 mm | Temple length: 150 mm, Integrated microphone for clear calls and access to your phone’s virtual assistant, Blocks up to 99% of UVA/UVB rays ,