The Sony VG-C3EM Battery Grip is a vertical battery grip for Sony's a7R III, a7 III and a9 mirrorless cameras.
This grip holds 2 NP-FZ100 batteries to extend shooting time.
The VG-C3EM is extended to aid vertical shooting and features a second shutter button and multi-selector.
Batteries can be charged in the grip via the camera's USB port.