See reviews @ http://www.amazon.com/gp/product/B003GTSHY8?&tag=mdaydaily-20 Taking pictures remotely is even easier with a wireless shutter release, with a range of approximately 16 feet (4.8 meters).
Mount your camera and choose "delayed remote" or "quick response remote" from your camera's control panel display. Aim the remote toward the infrared receiver on the camera, and press the shutter release button on the remote. Focus & shooting modes can be adjusted in your camera's settings. Remote requires a direct line-of-sight to operate.

Compatible Models:
EOS -- 300D, 300V, 300VQD, 300X, 350D (Rebel XT), 350D, 400D (Rebel XTi), 450 (Rebel XSi), 50/55, 10, 100, kiss III, kiss IIIL, EOS IX

IXUS jr/II/III, Sureshot, ELAN7, Rebel T1 Date, Rebel T2 Date, Z180u, Z155, Pro90 IS, 120, 370Z, G1, G2, G3, G4, G5, G6, S70, S60, S1 IS, Pro 1