Feature: 1. MULTI FUNCTION: Smart Bluetooth glasses is not only a Bluetooth glasses, but also a sunglasses, in your midday driving or walking can not only shield you from the sun can also help you to answer the call. 2. REDUCE INTERFERENCE: Wireless smart glasses use directional sound technology, the sound can be placed in a designated location, which can effectively reduce the external interference to you. 3. SOUND ISOLATION: Whether you are making a phone call or listening to music will not be heard by people other than you, effectively protect your privacy, and more to solve the long time wearing headphones on the ear injury. 4. BUILT IN HD MICROPHONE: Smart glasses has a built in high sensitivity microphone with HD sound quality and CVC6.0 noise reduction technology. Can eliminate internal and external noise during calls and reduce sound interference in closed environments, bringing you real HD calls. 5. WIRELESS BLUETOOTH: Wireless Bluetooth sunglasses support Bluetooth 5.0 wireless transmission, wireless playback, high speed and stable connection, built in battery, long battery life. Specification: Item Type: Smart Bluetooth Glasses Material: UPC Bluetooth Version: V5.0 Bluetooth Mode: HSP, HFP, A2DP, AVRCP Receiving Range: 15m/16.4yd Built in Lithium Polymer Battery: 110mAh Charging Time: 2‑3h. Package List: 1 x Eyeglasses1 x Wiping Cloth1 x Instruction Manual1 x Charging Cable1 x Storage Bag