Quantum Flash Locking Module (MA2) Cord locks into output jack of Quantum Battery Long coiled cord stretches to 6 feet for use with belt clipped or shoulder strapped battery Module locks into flash's battery compartment Quantum QB1+ or QB1C and Achiever 1850STW, Canon MR-14EX, MT-24EX, LumoPro, LP120, Metz 25CT3, 28CT3, 38CT3, Minolta;320X, 360PX, 80PX, Olympus;FL-40, Pentax AF200T, AF280T, Phoenix ZB1F92M, Sunpak 120J AUTO PRO TTL, AUTO DX 8R, Vivitar 283, 285, 285HV