Waterproof outdoor sport camera, weigh 64g only (with battery), and this hands-free Action cam delivers digital video in 640 X 480 VGA at 30 frames per second. Water resistant, that means weather proof. For outdoor sports use, such as biking and hunting, it is necessary! It can be used even in rain or snow. Comparing with other similar cameras in market, it can record up to 3.5 hours continuously, and catch image even in low light, that is very important for fun. Besides, it is also a considerate design, the lens is not glass, and it is Acrylic. That is much safe, no hurt for men, as Acrylic has not sharp debris when broken.