The POV ACG25-4CAC1 is a unique wearable High Definition camcorder and polarized sunglass combination. The sunglasses are sleek and stylish and weigh only 1.4 ounces. These glasses include two sets of high quality polarized lenses (one clear set & one tinted set). A 720P CMOS pinhole video camera is housed in the sunglass frame and features a 72-degree wide-angle lens. Video is recorded at 30 frames per second in AVI video format with a resolution of 1280 x 720. The ACG25-4CAC1 also records audio with the built-in microphone. The 4GB of onboard memory will record over one hour of video. A Micro SD slot can add up to 32G of memory (card Not included). The built-in lithium battery will provide between 2 – 3 hours of recording time. To view your action, simply plug the unit into a computer with a USB (cable included). It’s as simple as that - no additional software or drivers needed! The ACG25-4CAC1 includes a case, a charger, lens cleaning cloth and USB cord. They are water and sweat resistant. The ACG-25-4CAC1 is compatible with Win98, WinME, WinXP, Win2000, Vista, Win 7, and MAC.