They call those STUNT CAMs or Helmet Cams if you google for one.
Ok here goes according to what i can find if this is the proper camera listed in the video.
$248
The newest ATC5K is now with a built-in 1.5" LCD screen and photo capture function! This model has the widest angle lens of all the ATC models at a 53 degree viewing angle, making it great for action sports, water sports, and everything else.
Features:
- Full-function, hands-free, digital recording
- Video capture at 640 x 480 VGA resolution at 30 frames per second
- Waterproof up to 10 feet and shock-resistant for extreme conditions
- Mounting grips and straps of different length are included. Mounts easily on helmets, handlebars, and other sports equipment
- Use as a webcam when connected to a PC and as a viewfinder when connected with TV/DVR
- 53 degree capture field of view
- 1.5 inch color LCD screen
- Capture digital still photos
- Remote control included (Activate the camera when mounted on your helmet!)
- USB and RCA cables included for easy playback on PC or TV (NTSC)
- SD card expansion up to 4GB – onboard memory is 32MB
- Compatible with operation system WIN2000/XP/Vista and Apple Mac X 10.3/10.4
- Operates with 2 AA batteries (Not included)
- Dimensions: 4.5L x 2.0 D x 3.0 H (in.)
This may not be the exact camera he had but its the closest i could find with that name.
Not a great resolution on it but if your just wanting youtube footage its probably just right.
But helmet cams from around 150-600 can be found here including the one i discribed above.
stuntcams.com/shop/helmet-cameras-c-21.html?gclid=CNSqqZu9n5oCFQkzawodYGEL8w
