This vertical battery grip is compatible with Sony A9, A7III, and A7RIII cameras (not made by Sony). It is a VG-C3EM replacement and only works with NP-FZ100 batteries. This grip allows the camera to shoot continuously at a higher speed and extend working time, making it ideal for use in many situations such as news interviews, personal photography, and outdoor shooting. Equipped with a vertical grip shutter button, front and rear dials, AF-ON button, AE-L button, multi-selector, etc., allowing you to shoot in the same way as with a horizontal grip. Excellent coating made of top-class rubber for a perfect feel. ・Specifications Working voltage: DC7.2V Working temperature: 0-40°C Compatible batteries (sold separately): 1 or 2 NP-FZ100 lithium batteries (for the grip) Material: Metal + Rubber Color: Black Size: 12.7 x 6.2 x 10.8 cm Net weight: 272 g Please refrain from purchasing if you are overly concerned about details. Thank you.