1、Magnetic Design: Wireless Bluetooth sunglasses are the world's first smart glasses designed with a magnetic quick release module that allows instant switching between frames. Using advanced sound technology, they are tailored to your daily wear and style. 2、Voice Helper: Magnetic Bluetooth glasses slide the temples forward or back to turn the voice helper on and off. With a built in for MEMS microphone and for AAC speaker, you can interact directly with your phone to set and listen to navigation or make calls on the go. 3、Smart Body Sensor: Smart sound glasses have a body sensor in the temple that automatically turns on and connects to your phone within 3 seconds of wear. Gesture controls such as adjusting volume, acoustic playback, pause, switch, answer or turn off calls. 4、IP67 Waterproof: Smart Bluetooth glasses are professionally waterproof and sweat proof. Equipped with up to IP67 waterproof performance in cooperation with accurate technology. Effectively prevent the splashing of domestic water and sweat. 5、Longer Working Time: Smart glasses last longer with built in high capacity dual batteries (115mAh). With 120 hours (5 days) of standby time or 7 hours of continuous music playback runtime, providing you with all day use. The specially designed magnetic port allows for fast charging. 1 x Smart Sound Glasses1 x Charging Cable1 x Storage Bag1 x Dust Free Cloth1 x Instruction Book Item Type: Smart Sound GlassesMaterial: TR90Color: BlackBattery: Li ion Battery (Built in) Capacity: 2 x 115mAh (Built in)Bluetooth Version: V 5.3Horn Typr: Double AACOperation Mode: TouchWaterproof: IP67