The BG-E21 Battery Grip from Jupio is designed for the Canon EOS 6D Mark II DSLR Camera. It holds two LP-E6 or LP-E6N Li-ion battery packs, effectively doubling your shooting time, while providing increased comfort, stability, and control when shooting in vertical and landscape positions. A heavy-duty thumbwheel locks the unit tightly to the camera, and this ergonomically-designed grip also features a shutter release button, main command dial, joystick, on-off button, AF point selection button, AE lock button, and a multi-function button. The camera may also be triggered using the handy 2.4 GHz wireless remote trigger. The JBG-C015 battery grip may be operated using six AA batteries in an emergency, or if the LP-E17 batteries become exhausted.