Features： 1、Open 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. 2、Make 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. 3、Variety 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. 4、Lightweight And Comfortable: Smart glasses with flexible hinges ensure audio smart glasses fit a wider range of faces. 5、Ultra 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. Specification： Item Type: Smart Glasses Material: ABS, PC, Electronic Components Weight: Approx. 179g / 6.3oz Battery Type: Lithium Battery (Shipped With Built In Battery) Battery Capacity: 80mah Talk Time: 6-8 Hours Charging Time: 1-2 Hours Bluetooth Version: V5.0 Transmission Distance: Outdoor Straight Line Distance Of 15-20 Meters Package List： 1 x Smart Glasses  1 x Protective Sleeve 1 x Charging Cable  1 x Cloth 1 x Instruction Manual