Safety Wind- and Sandproof Bluetooth Sunglasses, Audio Sunglasses, Sports sunglasses with Bluetooth Headphones Color:Black also you also can use

also you also can use it charging your devices after connect it with the right usb port from other usb power banks or adapter

Intelligent power management IC

smartphones

Innovative three fold design

Built in high sensitivity touchpad

Safety Wind- and Sandproof Bluetooth Sunglasses, Audio Sunglasses, Sports sunglasses with Bluetooth Headphones Color:Black also you also can use1. Smart sunglasses, with built in Bluetooth chips and speakers, provide you with rich and high quality sound while minimizing the sound heard by others. 2. Bluetooth glasses are designed with large curved lenses and new materials, which are close to people's eyes, and can prevent wind, sand and ultraviolet rays. The frame is made of ultra modern high elastic materials, which is suitable for most face types. Lens width: 63mm; Bridge Width: 18mm;