Vertical shutter release Same functions as old grip Significantly Improves Stability Function buttons for more shooting options Use two LP-E6N Lithium battery. Fits for Canon EOS 5D Mark IV Model name:BG-E20 Product name:BG-E20 Camera battery grip for Canon 5D Mark IV Size:153x118x86 mm Weight:310g Power:2pcs LP-E6N batteries Specially designed for Canon EOS 5D Mark IV DSLR Camera with all the functions as the same as the old ones. It is equipped with a 2-step Vertical shutter release button, AE-L/AF-L button ,Multi selector, Main command dial for shooting in a vertical position. This battery grip can hold one or two LP-E6N/LP-E6 rechargeable Li-ion battery, In addition to the camera internal battery. Please note that the battery grip BG-E20 does not support AA batteries. Compatible With:for Canon EOS 5D Mark IV, for Canon EOS 5DIV, for Canon EOS 5D4 Color:Black Material:plastic Package Contents: 1 * Battery Grip 1 * English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.