Bullet Point 1 Kastar Pro Multi-Power Vertical Battery Grip same functions as the original battery grip Canon BG-E20 Bullet Point 2 Hold 1 or 2 LP-E6 Li-ion batteries, doubling the battery capacity of your camera, effectively extending your shooting time. Bullet Point 3 When using two batteries, the grip will automatically switch to the second battery if the first becomes depleted. Switching does not interrupt camera operation. Bullet Point 4 Professional edition with vertical-grip shutter-release button, main dial, AE-L button, Index/Reduce button and Exposure button. Vertical shutter with half-press function, more comfortable vertical shooting. Bullet Point 5 High quality product and Manufacture price, include 30-day Money Back and one year Warranty. Description Details Package Includes: 1 x BG-1W Battery Grip (for Canon EOS 5D Mark IV Digital SLR Camera) 2 x LP-E6 batteries 1 x Ultra Fast Charger 1 x Car Charger 1 x European Plug Product Description: 1.Can be used 1 or 2 LP-E6 lithium batteries, to meet user needs for long time continuous shooting. 2.Has a vertical shoot shutter, half press for focusing, convenient vertical (portrait) film. 3.Using the material PC+GF10, superior feel and lustre, excellent scientific design,convenient holding, improve operability in vertical shooting, prevent inadvertently shoot. 4.With main wheel the same function as the camera's, can adjust the aperture and shutter speed. 5.Aperture value/exposure compensation button, with exposure control function. Quality Price Value