bj ; MPN. Water resistant cap for audio, used for firefighting, so you can hear. BLACKJACK MOUNT FIREMAN HELMET CAMERA/FLASHLIGHT CLAMP FIRECAM MODEL BLACK JACK ; Item number. Easily transfer your camera between fire helmets with the BlackJack mount. firecam bj ; Accurate. The BlackJack BJ mount for traditional and modern style fire helmets; Water resistant cap for audio, used for firefighting, so you can record everything. *Water resistant cap for audio, used for firefighting, so you can record. The BJOO4 US Style works with the Fire Cam Mini, These firefighter flashlight helmet/hard hat mounts keep your light and camera where you put it shining where you need it. . The BlackJack BJ FIRE CAM MOUNT for traditional and modern style fire helmets. The Fire Cam Mini HD and Fire Cam Mini HD 2 Fire Helmet Cameras each include a BJ BlackJack mount that is specifically designed for Fire Cam. *The BlackJack BJ mount for traditional and modern style fire helmets. The BJ BlackJack mount specifically designed for Fire Cam is INCLUDED! It also comes with a water resistant sound cap (for audio) and a waterproof cap. Water resistant cap for audio, used for firefighting, so you can record everything. ; Model. Browse our helmet light mount options. The BlackJack BJ mount for traditional and modern style fire helmets.