Compatible with Selected Sony Mirrorless Cameras The Sony VG-C4EM Battery Grip is specifically designed for selected Sony mirrorless cameras. The ergonomic design improves grip comfort and increases camera stability most noticeably when shooting in portrait orientation. Additional Camera Controls The grip mirrors the same controls found on the camera body, positioning them vertically on the battery grip. It offers a secondary shutter button and multi-selector control pad for an intuitive and consistent user experience. Doubles Battery Capacity Able to load 2 x NP-FZ100 batteries (available separately), the C4EM grip for the Sony Sony A1, A9 II, A7S III, A7R V, A7R IV, A7R IVA,A7 IV effectively doubles the battery life of your camera allowing you to shoot for longer. Batterie.