【BG-E21 Battery Grip for 6D Mark II】Only compatible with Canon 6D Mark II DSLR camera, the BG-E21 replacement battery grip perfectly communicates with your camera with top electric contact. Lock it tightly on your camera by rotating its attach/detach dial (Note: you will need to remove the battery tray cover of your camera before inserting the battery grip) | 【Extended Battery Life】This battery grip includes two battery compartments to hold two LP-E6/E6N batteries simultaneously to greatly extend battery life. It recognizes original LP-E6/E6N battery as well as off brand LP-E6/E6N battery. Can also work when only one battery is in the tray. Recommended for interviews and live broadcasts | 【Easy Operation Control】The batter holder grip is ergonomically designed with its own shutter button to control your camera shutter with ease. Also supports auto focus, auto exposure lock, auto focus point selection, and auto focus area selection for easier operation control | 【Vertical Shooting Easily Realized】 The grip offers extra stability for holding camera vertically. You can single handedly switch your camera from horizontal position to vertical shooting, especially when using a heavy telephoto lens. When taking horizontal shots, you can mount the grip on a tripod or photography stand via its bottom 1/4" threaded screw hole | 【Firm & Comfortable Grip】The lightweight and solid hardened plastic makes the grip easy and stable to hold. The non slip and moisture proof matte finish provides firm and comfortable grip on your camera. Weighs only 9.17o/260g