Features:

• Large capacity battery grip designed for EOS 70D, with improved ergonomics for comfortable holding.
• h Powered by up to two Battery Pack LP-E6, six AA-size/LR6 batteries, or optional AC Adapter Kit ACK-E6
• h 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.

Details: The Canon BG-E14