Waterproof to a depth of 10 metres the Helmet Action Camera AC22 can be used for filming underwater whilst snorkling or scuba diving The wide angle lens makes sure you get the shots you want & the 3 hours bettery life should ensure you dont miss any of the excitement The bullet shaped design makes it easy to hold & at only 112g you will hardly notice the weight especially for those avid skiers who attach the camera to their helmet using the sport mount A built in microphone means that you can record the sounds of delight awe & on the odd occasion fear as you shoot down the mountain at neck break speeds