Features:

• Wireless camera operation for Digital Rebel, XT, XTi, XSi, and most film EOS SLR's.
• Allows for shutter release up to 16 feet
• Instant or 2-second shutter release delay
• Makes group photos easy
• Battery included, Typical Battery Life - up to 2 years, 10,000 exposures

Editor Reviews:

Product Description:
The new Opteka RC-4 remote control makes taking group photos easy by allowing you to take pictures away from the camera. The RC-4 allows the selection of either a 2-second shutter delay or instant shutter release. The RC-4 is completely dedicated to the Canon EOS Digital Rebel, XT, XTi, XSi, Elan 7ne, 7n, 7e, T2, K2, 300D, 350D, 400D, & 450D

Rating : - Works perfectly
I bought this remote control for my Canon XTi digital camera,It workd perfectly from the fist time. I'm very happy with it.