Just like the self timer on your camera. The timer remote switch allows you to set any delay (in 1 second increments) up to 99 hours, 59 minutes and 59 seconds. The Interval Timer can be set to any time period up to 99 hours, 59 minutes and 59 seconds. If you set it to 10 minutes, for example, one exposure will be taken every 10 minutes until either the film runs out or the Exposure Count limit has been reached. It allows you to take time exposures up to 99 hours, 59 minutes and 59 seconds long. This setting allows you to set the number of exposures that will be taken, up to a total of 399 times. For example, if you set it to 30 times, then the exposure will be taken only 30 times. Features: - Self-Timer: 0s to 99hrs 59min 59s in one-second increments - Interval Timer: 1s to 99hrs 59min 59s in one-second increments - Long-Exposure Timer (Bulb-mode): 0s to 99hrs 59min 59s in one-second increments - Exposure Count: 1 to 399 times - Size: 154mm L x 40mm W x 18mm H - Net Weight: 185g - Cable Length: 920mm - Power Supply: AAA Battery 1.5v (Not included) Compatible with: CANON EOS 1200D, CANON EOS 1100D, CANON EOS 1000D, CANON EOS 450D, CANON EOS 400D, CANON EOS 500D, CANON EOS 550D, CANON EOS 350D, CANON EOS 300D, CANON EOS 300, CANON EOS 300V, CANON EOS 100D, CANON EOS 550D, CANON EOS 600D, CANON EOS 700D, CANON EOS 750D, CANON EOS 760D, CANON EOS 60D, CANON EOS 70D, CANON PowerShot G12, CANON PowerShot G11, CANON PowerShot G10, CANON EOS 1000D (Rebel XS), CANON EOS 500D (Rebel T2i), CANON EOS 500D (Rebel T1i), CANON EOS 450D (Rebel XSi), CANON EOS 400D (Rebel XTi), CANON EOS 350D (Rebel XT), CANON EOS 300D, CANON EOS 300, CANON EOS 300V, Pentax K-7, K10D, K110D, K100D, K20D, K200D, Cs205 Package Content: 1 x Timer Shutter Release Cord 1 x English Instruction Manual