Safety Wind- and Sandproof Bluetooth Sunglasses, Audio Sunglasses, Sports sunglasses with Bluetooth Headphones Color:Black this heating coaster is an

this heating coaster is an indispensable helper

smartphones

Intelligent power management IC

longer transmission distance

Safety Wind- and Sandproof Bluetooth Sunglasses, Audio Sunglasses, Sports sunglasses with Bluetooth Headphones Color:Black this heating coaster is an1. 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;