Built-in speaker and microphone: Smart glasses are a combination of open-back glasses, blue-light blocking glasses, and sunglasses. The built-in premium speaker and microphone allow you to listen to clear music and make clear calls hands-free.Voice Control Features: Wireless speakers with smart assistant technology, such as speakerphone calls and answers, easily connect to your favorite music stations (for Pandora, iTunes, Spotify, and more) and easily talk to routes, weather, and traffic updates.Blue light protection: Smart glasses are blue light resistant and resistant to UV400 rays. It reduces eye strain and discomfort caused by prolonged use of smartphones, smartwatches, tablets, computer monitors, and other devices.Comfortable and waterproof: Open-ear smart glasses are lightweight, comfortable, sweatproof, and waterproof. Computer glasses can be used in all settings, such as online meetings, classes, games, driving, exercising, and outdoor activities.Magnetic charging: Smart glasses are suitable for most women and men. The music glasses have a 180 mAh battery that can be used for 6 hours of playback or calls and can be fully charged in 1 hour using a magnetic charging cable.