Dedicated to the Panasonic Lumix DC-S1 and S1R mirrorless cameras, the DMW-BGS1 Battery Grip benefits shooting in the vertical orientation and also accepts one additional DMW-BLJ31 rechargeable lithium-ion battery for extended shooting times. In terms of its physical design, the extended shape incorporates a secondary shutter release button as well as an Fn button, joystick, and AF-ON button to mimic the camera's own layout for intuitive handling. Additionally, the grip is also splash, dust, and freeze resistant to the same degree as the cameras to maintain its ability to function in harsh conditions.