Feature: 1. Multifunction Use: Not just a pair of Bluetooth glasses, but also a pair of sunglasses that not only block you from the sun when you're driving or walking at noon, but also help you answer calls. 2. Noise Cancelling: Directional technology can put sound into a designated position, which can effectively reduce external interference to you. Intelligent noise reduction, external expansion channel. 3. Bluetooth 5.0 Technology: Bluetooth 5.0 wireless transmission, about 10m / 33ft receiving range, high speed and stable connection. Built in 200mAh polymer lithium battery (included), 2‑3h charging time. 4. With Headphone: Whether it is calling or listening to music, it will not be heard by other people, effectively protect your information, and solve the damage to your ears caused by wearing headphones for a long time. 5. Applicable Scene: The smart glasses are perfect for cycling, running, driving, boxing, fishing, basketball, shopping and other outdoor activities, you can easily dial in high quality sound. Specification: Item Type: Smart Glasses Material: ABS Bluetooth Protocol: 5.0 Receiving Range: Approx. 10m / 33ft Built in Polymer Lithium Battery: 200mAh (included) Charging Time: 2-3h . Package List: 1 x Glasses1 x Wiping Cloth1 x Storage Box1 x Manual1 x Headphone1 x Charging Cable1 x Storage Bag