Calumet Four Channel Universal Radio DSLR Shutter-Trigger Kit

The Calumet Four Channel Universal Radio DSLR Trigger Kit is a wireless triggering system that allows you to trip your camera's shutter remotely (up to 46m), allowing you to keep your eye contact with the subject or enabling you to set up cameras in places you can't be. This kit contains one transmitter and one receiver. Requires two AAA batteries (not included).

Price: 44.99 from Wex Photo Video