The Vello BG-S4 Battery Grip is designed specifically for the Sony Alpha a6300 and a6400 camera. The grip holds one or two NP-FW50 batteries which effectively doubles your shooting time when both batteries are installed. It works through the use of a dedicated battery adapter and the design of the grip provides a comfortable way to hold and shoot your camera in the vertical position. The BG-S4 also has a vertical-position shutter-release button for portrait orientation shooting which works through the use of an included Multi-Terminal cable. It even has an on/off switch that deactivates the shutter release when it is not needed, preventing accidentally release when performing activities such as shooting video.
The BG-S4 is designed with an anti-slip rubber grip to further improve handling. The battery grip screws into the camera's tripod mount, and it has another tripod mount on its bottom for attaching to a camera support. A metal mount allows you to attach a camera strap to the BG-S4 for convenient carrying.