The Panasonic DMW-BG2 Battery Grip is designed for the Lumix S1R II, providing a secure and comfortable grip for vertical shooting. It accommodates an additional DMW-BLK22 lithium-ion battery, extending the operating time for longer shoots. This grip features a secondary shutter button, joystick, and additional dials for quick access to key functions. Its dust and splash-resistant design ensures reliable performance in challenging conditions.