Power supply: 5V DC / 500 mAh - Video format: AVI - Image format: JPG - Read speed is higher than 700 kbs write speed is higher than 500 kbs - Resolution: 1280 x 720P (HD) - Support TF / Micro TF card 2GB~32GB - Battery type: lithium polymer battery - Battery capacity: 350 mAh (built-in) - Working time: 90 minutes - Working temperature: 0~60'C - Storage temperature: -20~80'C - Charging time: 3 hours - Pixel: 5.0MP - Suitable for cycling hiking climbing etc. - This sunglasses is designed with a wide angle lens which captures a wider field of vision. - Easy to use. You can plug it into your computer to view / transfer the files (no extra software is needed) or you can plug it into a TV to view with the included cables.