The Panasonic DMW-BG1 Battery Grip is equipped with an eight-direction joystick and is compatible with the Lumix G9 II and the Lumix S5 II and S5 IIX. Extended battery life By using two batteries one in the camera and the other in the grip*, the DMW-BG1 doubles the battery life for extended shooting. Easy operation, both vertical and horizontal Easy to grip and access buttons in both horizontal and vertical orientations. The camera also features an 8-directional joystick with the same ease of operation as the camera body. Panasonic DMW-BG1E Battery Grip in Black