Opteka Timer Remote Control for Canon EOS 1D, 5D, 10D, 20D, 30D, 40D, & 50D Digital SLR Cameras Works on the Canon EOS 1D, 5D, 7D, 10D, 20D, 30D, 40D, & 50D Digital SLR Cameras 4 Modes: Shutter Release Timer (0s-99h59m59s), Exposure Timer (0s-99h59m59s), Interval Timer (Time between shots) (0s-99h59m59s) Backlit LCD Screen, 3 Foot Cord 6" X 1.5" X 0.70"; 3.70 Oz; Operates on two AAA Batteries (Included) 1 Year Warranty