The Green Lion Barcelona Smart Glasses are the perfect combination of style and technology for a hands-free experience. These smart glasses are designed with an anti-blue lens and UV400 protection to they reduce eye strain. With Bluetooth V5.4, integrated speakers, and a microphone, these smart glasses enable users to play wireless music, make hands-free calls, and even trigger voice assistants. This product has intuitive touch controls that enable users to pause/play songs, answer/reject calls, and even control a remote camera. They contain dual 55mAh batteries for 5 hours of playtime and use magnetic charging, so recharges are quick, taking just 1.5 hours. Anti-Blue Lens Built-In Microphone UV400 Protection Pause | Play Songs Answer/Reject Calls Touch Control Voice Assistant Remote Camera Magnetic Charging