Vidpro RC-22 Universal Wireless and Wired Remote Control Shutter Release Set Single Frame: Press shutter once and take immediate pictures. Continuous Multi-Frame: Press shutter one time and camera will take 5 consecutive photos, or hold down for continuous shutter release. 2 Second Time Delay: Gives you the extra time you need to get into the perfect picture position. Long Exposure (bulb mode): Set camera to bulb mode and hold shutter release for 3 seconds. The shutter will now be open, press once more to take the picture. Wireless Range: Up to 300 meters, Switch: Focus Operation (supports auto-focus) and Shutter Release