The Dot Line RS-RT09/D90 2-in-1 Wireless Remote is a 16 channel, user selectable, wireless shutter release that will fire your camera from unobstructed distances over 300' (91.4 m) using RF (radio frequency) signals. The unit can also be used as a wired release when utilizing the receiver to trigger the camera.

The transmitter has a 2-position switch which makes using this remote really easy. You just press lightly for pre-focusing and then continue pressing to release the shutter. Built-in LED confirmation lights indicate pre-focus and exposure.