Control autofocus and shutter triggering, Capture images without shaking camera Ideal for bulb exposures, super telephoto shots and macro photography Handy for taking pictures of subjects that are difficult to approach 2.3 ft (70cm) long camera connection cable + 4.3 ft (130cm) long extension cable It fits for Canon EOS R1,R3,R5,R5 Mark II,5D Mark IV,5D Mark III,5D Mark II,5D,6D,6D Mark II,7D,7D Mark II,1D,1DS,1DX and Other Canon Cameras with 3-Pin Connection, Replaces Canon RS-80N3 remote This remote switch is designed to reduce camera shake to an absolute minimum. It is a perfect choice for taking long exposure photos. The remote has a two-stage release button, half-press to focus, fully press to trigger the shutter and take a photo. For long exposure, please press the release button fully and slide it into the locked position. The shutter will stay open as long as the shutter release button is locked. To unlock the shutter, just slide the release button back to its original position. This remote is powered by camera, you don't need to install a battery. Package includes: 1 x Remote Switch 1 x 70cm long camera connection cord 1 x 130cm long extension cord It replaces Canon RS-80N3 remote switch and is compatible with select Canon EOS Cameras as below: EOS R1/R3/R5/R5 Mark II EOS 1D/1D C/1Ds/1D Mark II/1D Mark II N/1D Mark III/1D Mark IV/1D X Mark III/1D X Mark II/1Ds Mark II/1Ds Mark III EOS 5D/5DS/5DS R/5D Mark II/5D Mark III/5D Mark IV/6D/6D Mark II/7D/7D Mark II EOS 10D/20D/20Da/30D/40D/50D EOS 1V/3/D30/D60/D2000