Overview: 1: Support mobile phones with Bluetooth function to answer music, make calls and receive prompt sounds of major chat software programs. 2: Support music up and down playback, call and music can be automatically switched, so that you will not miss every call while enjoying music 3: Support Chinese, English switch at will, 4: Support Bluetooth online one for two. 5: The lens can be rotated, and can be disassembled and replaced at will. Specifications: Name: Stereo Bluetooth Glasses Item No.: SM02D (Support Chinese and English switching)) Color: black + gray black + yellow black + brown black + transparent black + polarized light (additional 2 yuan for polarized lenses) Color box size: 8.6*7.2*18.1 Full set weight: 143.5g Packing: 50PCS/carton Size: 44*39*40 Net weight: 8.5KG Gross weight: 9KG Package Content: A: Card video sunglasses B: Video glasses with stereo Bluetooth function