Shoulder mount with special re-designed, built-in 2 position trigger for auto-focus and shutter release. Complete unit weighs only 12 oz. Supports Nikon, Canon, Pentax, Minolta and others. REQUIRES OPTIONAL, SPECIFICALLY MODIFIED BRAND-SPECIFIC REMOTE SHUTTER RELEASE FOR OPERATION WITH YOUR CAMERA. See 'Release Cords' section for options. If you already have a cord you can send it to us for modification or use our Do-it-Yourself kit (RCK-20). Add the optional DeluxPack or ProPack for increased comfort and functionality. Works great with all Digital cameras with electronic ports. Available in three colors: Black, Desert Tan or Olive Drab (military green).