【Built-in Microphone & Speaker】The GAXABI M9 Pro smart glasses are equipped with two superior speakers on each side, it can enhance 360° stereo sound, with upgraded mic built into the frame, you can go hands-free, listen and speak clearly. 【Polarized Sunglasses Lenses】M9 Pro smart glasses features UV400 polarized full-protection lenses protect your eyes from the sun with excellent color, clarity and contrast.And the bluetooth sunglasses are made of TR90 material , it will be more durable. 【Voice Control & Multi-function Button】M9 Pro with Smart Assistant Technology, you can easily access Siri, Google Assistant, you can also use the one-touch button easily switch the music, play/pause the media, manage the calls and activate the voice assistant. 【8 Hours Battery Time & Magnetic Charging】 M9 Pro smart glasses are powered by high-quality batteries, which only take 2 hours to fill, and can be played continuously for up to 8 hours. Using magnetic charging can reduce interface wear and extend the life of the glasses. 【Wide Compatibility & Adjustable Nosepiece】 M9 Pro smart glasses are compatible with all kinds of iPhone and Android phones, they are equipped with adjustable silicone Nosepiece , it can be adjusted according to individual needs. 【Our Service】We aim to provide high quality and affordable products to bring you a better experience. If you have any questions, please contact us. We will reply to you within 8 hours. Smart Glasses, Polarized Bluetooth Sunglasses, Built-in Mic & Speakers, Voice Assistant, UV Protection, Bluetooth Glasses for Office, Driving, Cycling Outdoor Sports