Mato&reg; Sports Sunglasses Wireless Bluetooth Headset Headphone for iPhone Cellphone With mini USB port and rechargeable built-in lithium battery protect your eyes and eyesight; Employs excellent lenses, with trendy appearance Supports MP3, WMV, WMA, ASF, WAV music formats; It shields UV Glare and diffused light, allowing you to enjoy music in the sun without disturbance