Vello BG-C9 Battery Grip for Canon 5D Mark III Compatible with Canon 5D Mark III DSLR | Compatible with Canon 5DS and 5DS R DSLR | Comfort and Control in Vertical Position Vertical Position Shutter Release Button | Vertical Position Control Buttons & Dial Holds Up to Two LP-E6 Batteries | Also Works with 6 AA/LR6 Batteries Extends Shooting Time | Contains Camera Battery Door Holder In The Box: AA Battery Tray, User's Manual, One Year Limited Manufacture Warranty