These are the polarized sunglasses that record high-definition video from the wearer's point of view. A pinhole-sized 720p lens in the bridge of the frame captures 1280 x 720 HD video at 35 frames per second across a 72 degree wide angle. A built-in microphone records stereo sound and the sunglasses can also capture 8 megapixel still photos with the touch of a button. Video is recorded in AVI format and the internal 4 GB memory stores up to one hour of video or the integrated MicroSD slot accommodates up to a 16 GB memory card (not included) that holds up to four hours of recordings. Its rechargeable battery enables up to four hours of video recording after an eight-hour charge via the included AC adapter. All of the video recording components are water resistant, the lenses are impact resistant, and the sunglasses weigh just over one ounce to ensure comfort. Includes a USB cable for playing videos on a computer, a zippered carrying case, and a lens-cleaning cloth. 7 1/2" L x 3 1/2" H. (1 1/3 oz.)