NEEWER BG-70D Battery Grip for EOS 70D Digital SLR Camera with 2 LE-P6 Batteries Large capacity battery grip designed for EOS 7D Powered by up to two Battery Pack LP-E6, six AA-size/LR6 batteries or optional AC Adapter Kit ACK-E6 Improved ergonomics for comfortable holding 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 Ideal for high volume and easy vertical shooting