Features:The glasses are made of high-quality ABS material, which is sturdy and durableThe camera in the center of the lens ensures a wide field of view for high-definition video recording and image captureWith TF/Micro SD card expansion memory slot, support external TF card up to 32G, enough to store hours of videoLightweight and portable, the simple design looks just like ordinary sunglasses. Stylish and elegant design, suitable for both men and women.Good tool for outdoor activities, cycling, skiing, etc.Wearing these glasses, you will never let any unforgettable scene slip away from your life.Easily connect to PC/laptop, no driver requiredSpecification:Material: ABSColour: BlackVideo format: AVIVideo resolution: 1920 x 1080Video encoding: M-JEPGFrame rate: 30@fps +/- 1@fpsVideo ratio: 4:3Picture format: JPGImage resolution: 5MPOperating system: for Windows me / 2000 / xp / 2003ista; system 10.4; LinuxCharging voltage: DC-5VInterface: Mini 5-pin USBPower: Built-in 200mAh batteryExternal memory: support up to 32G TF card (not included)Operating system: suitable for Windows me/2000/xp/2003ista; operating system 10.4; LinuxGlass inner width: about 140 mm / 5.51 inchesWeight: about 138gPacking list:1 x Glass camera1 x USB cable1 x Cleaning cloth1 x Glasses case1 x ManualNotes:1. Due to the different display and lighting effects, the actual color of the product may be slightly different from the color shown on the picture. Thanks!2. Due to manual measurement, please allow a measurement deviation of 1-3cm.