This is a regular shutter release remote that replaces the shutter button on the camera that has the same function, semi press focus, press photo or video (for Samsung cameras need to set to video)
The product is very small and light, easy to carry， Product size: about 4cm * 2cm * 1cm /30G
micro 5pin usb plug, plugged into the data transmission port of the camera, you can control the camera directly without setting
No battery required, no charging, take power from the camera (small power does not affect the power)
The size buttons on the RC301 are all camera functions, the large button has two gears (half press to focus, press to take photos), and the small press to take photos and focus at the same time
