Dedicated to the Sony a1, a7 IV, a7R IV, a7S III, and a9 II mirrorless cameras, this Extended Battery Grip with Batteries & Chargers from Bescor features the grip which extends your shooting time and offers a more comfortable grip when shooting in vertical orientation. Also included are four FZ100 batteries to increase the life of your camera as well as four chargers to match. The batteries can be charged in the grip while attached to the camera via the USB port. The grip integrates seamlessly with the camera body's design and has a secondary shutter button and multi-selector for intuitive use.