B08QH4HBKW Vello BG-S7 Battery Grip for Sony A7R IV, A7S III, and A9 II Series Cameras

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Holds 2 NP-FZ100 Rechargeable Batteries, Extended Grip for Vertical Composition
Shutter Release Button for Vertical Use, Secondary Control Set for Vertical Use
C1 and C2 Function Buttons, AF-ON and AEL Buttons
Multi-Selector Joystick, Rubberized Nonslip Grip
Threaded 1/4″-20 Tripod Socket, Mount for Shoulder Strap or Hand Grip