Features1Open Sound Experience: There are 2 speakers and a custom audio processor to deliver clear, immersive sound to the space around your ears. Enjoy the music you love while remaining awareness of your surroundings. 2Make Calls: Simply tap the audio temple to answer calls. The dual microphones pick up your voice clearly over background noise, and the private mode automatically activates, preventing those around you from hearing your calling. 3Variety Of Styles: Audio smart glasses feature a detachable front frame, so you can switch between polarized sunglasses and the blue filtering designs at any time. 4Lightweight And Comfortable: Smart glasses with flexible hinges ensure audio smart glasses fit a wider range of faces. 5Ultra Battery Life: Audio smart glasses give you up to 8 hours of listening, enough to keep you entertained while hiking, running errands, doing chores, and more.SpecificationItem Type: Smart GlassesMaterial: ABS, PC, Electronic ComponentsWeight: Approx. 179g / 6.3ozBattery Type: Lithium Battery (Shipped With Built In Battery)Battery Capacity: 80mahTalk Time: 6-8 HoursCharging Time: 1-2 HoursBluetooth Version: V5.0Transmission Distance: Outdoor Straight Line Distance Of 15-20 MetersPackage List1 x Smart Glasses1 x Protective Sleeve1 x Charging Cable1 x Cloth1 x Instruction Manual