1. Compatible :For Nikon Z 8 full frame mirrorless cameras. There is a shutter button on the grip with shutter release function. The battery grip harmonizes with the camera design and is easy to use. NOTE:Does not support video shooting！cannot support 20 frames per second 2. There are two battery compartments, which are located at the left and right ends respectively. There are A and B indicator lights on the front to show the two battery level. 3. Can use 1 or 2 EN-EL15C rechargeable Lithium lon batteries at the same time, Add additional shooting time versus just using the battery in the camera alone. Increase camera life. 4. With built-in charging function. The handle is equipped with an USB-C external charging port, you can charge the battery without removing the battery from the grip 5. Includes a shutter cable to connect the grip to the camera ; At the bottom the handle has a Standard 1/4 screw hole for mounting on a tripod.