Hidden in a secret lining inside this hat is a high-grade CCD video camera and digital video recorder. The camera views through a tiny pinhole making the Hat Camera, when paired with one of our DVRs below, a complete self-contained recording system. The Hat Camera is compatible with our line of portable DVR units, including the DVR504, DVR502, DVR503, and DVR1000. Features: Discreet, Easy to use, Self contained. Specs: CCD, 450 TV Lines, Color, 0.2 Lux, 4.3 MM lens, 80 Degree Field of view, Power 5 Volt. Includes: Hat camera, Switching cables, Battery holder. Note: make, model and color may vary from the picture shown C1175