Open-Ear Sound Experience Enjoy high-quality music without wearing the headphones. The glasses have built-in powerful speakers to bring you a crystal-clear audio quality Wide Compatibility Compatible with Bluetooth-enabled devices, including iOSAndroid devices Touch Control After connecting to the mobile phone Bluetooth, you can tap the touch button to switch, play or pause music playback, answer or reject calls, and touch to wake up the voice assistant of the smartphone Remote Photography The Bluetooth remote control function allows you to take photos or short videos more conveniently, you no longer need to hold a mobile phone, capture beautiful moments or record lifes moments more freely Eye Protection The polarized lens can restore true color, eliminate reflected light and effectively block UVA, UVB and even some harmful light, always keeping your eyes comfortable and healthy Waterproof Design The sunglasses can still work normally under heavy rain. No need to worry about being damaged by rain or water drop Suitable Scenes Great for outdoor activities such as cycling, fishing, driving, walking the dog, sunlight baths, etc Specification Chip Bluetrum AB5636A Bluetooth version 5.0 Wireless connection distance about 40 feet more than 12 meters Speaker specifications Lian 1506 BOXnbsp Battery capacity 170mAh Charging method Magnetic charging sleeve 2 pins left 2 pins right Charging time about 70 minutes Standby time about 168 hours Talk time about 4 hours Play music time about 5 hours Control method touch control Frame material PCsteel Lens material TACUV400 UV protectionnbsp Template material PC Waterproof level IP65