HatCam One Size Hat with Universal Camera Mount Hatcam HC10 Hat with Universal Camera Mount. Patent Pending Hatam Mounting System allows you to attach any tripod compatible camera for first-person, hands-free video recording. Compatible with any tripod-mountable compact digital camera, pocket camcorder, helmet camera or action camera weighing under 7 oz. Capture first person point of view footage of hunting, fishing, sports, outdoor activities, hobbies, instruction videos, family events, and more. If you can wear a hat during the activity, you can film it with the Hatcam. 6-panel constructed standard-style baseball cap with velcro closure to ensure a snug, worry-free fit.