Water resistant cap for audio, used for firefighting, so you can hear. . *Water resistant cap for audio, used for firefighting, so you can record. 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. 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 BlackJack BJ mount for traditional and modern style fire helmets. Browse our helmet light mount options. ; Model. The BlackJack BJ mount for traditional and modern style fire helmets; Water resistant cap for audio, used for firefighting, so you can record everything. Easily transfer your camera between fire helmets with the BlackJack mount. firecam bj ; Accurate. The BlackJack BJ FIRE CAM MOUNT for traditional and modern style fire helmets. Water resistant cap for audio, used for firefighting, so you can record everything. 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. bj ; MPN. BLACKJACK MOUNT FIREMAN HELMET CAMERA/FLASHLIGHT CLAMP FIRECAM MODEL BLACK JACK ; Item number.