B07KLV7DSM Neewer Vertical Battery Grip for Sony A9 A7III A7RIII Cameras, Replacement for Sony VG-C3EM, Only Works with NP-FZ100 Battery (Battery Not Included)

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Compatibility: The battery grip (Replacement for Sony VG-C3EM) is compatibal with Sony A9 A7III A7RIII Cameras; With a 1/4 inch bottom screw thread, you can attach it to the tripod(NOT compatible with Sony A7SIII)
Function: Professional edition with vertical-grip shutter-release button, front and rear dials, AF-ON button, AE-L button, Multi-selector, making vertical shooting as easy as horizontal shooting
Vertical Shooting: Attractive and convenient vertical shooting shutter release function, increases the shooting stability and enhances the handle feeling
Power Source: Work with 1 or 2 pieces Sony NP-FZ100 Li-ion battery; Provides more battery capacity for your camera extending your shooting time (Batteries are NOT included)
Ergonomical Design: Excellent coating made with the top-class rubber for perfect feeling