Opteka BG-E14 Replacement Vertical Shutter Release Battery Pack Grip for Canon EOS 70D Digital SLR Camera Large capacity battery grip designed for EOS 70D, with improved ergonomics for comfortable holding Vertical shutter release also makes shooting with the camera in a vertical position just as comfortable as shooting horizontal Ideal for high volume and easy vertical shooting Powered by two Canon LP-E6 battery packs or six AA batteries Features a variety of operating controls: shutter button, main dial, multi-controller, AF point selection button, AE lock/FE lock button, AF start button, and multi-function button