The Battery Grip BG-E16 for the EOS 7D Mark II holds two LP-E6N battery packs, or six AA batteries, or the optional AC Adapter Kit ACK-E6 for extended shooting time. It features a variety of controls such as a shutter button, main dial, multi-controller, AF point selection button, AE/FE lock button, AF start button, and multifunction button making it ideal for vertical shooting. Features Product colour Black Compatible products EOS 7D Brand compatibility Canon Product type Digital camera battery grip Battery Battery type LP-E6N Number of batteries supported 2 Cylindrical battery size AA