Product Description · Comfort and Control in Vertical Position · Vertical Position Shutter Release Button · Vertical Position Control Buttons & Dial · Extends Shooting Time · Holds Two LP-E6 Batteries · Also Works with 6 AA Batteries · Accepts ACK-E6 AC Adapter Kit The BG-E9 Battery Grip from Canon is a very useful accessory to have on hand for your EOS 60D DSLR. It not only offers you the added convenience of a vertical shutter release but contains the additional benefits of AE/FE Lock, AF Point Selection, Magnify Button and Aperture Exposure Compensation. There is an easy-to-use attach/detach mechanism. The grip also provides extra heft to the camera giving you more to hold on to. It operates on either two optional LP-E6 Lithium-ion batteries or six optional "AA" batteries. Functions o AE/FE Lock o Index o Reduce Button o Main Dial o AF Point Selection o Magnify Button o Aperture/Exposure Compensation Button o Vertical Grip Operation Switch