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 as well. 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: EOS 1200D, EOS 1100D, EOS 1000D, EOS 450D, EOS 400D, EOS 500D, EOS 550D, EOS 350D, EOS 300D, EOS 300, EOS 300V, EOS 100D, EOS 600D, EOS 700D, EOS 750D, EOS 760D, EOS 60D, EOS 70D, PowerShot G12, PowerShot G11, PowerShot G10, EOS 1000D (Rebel XS), EOS 500D (Rebel T2i), EOS 500D (Rebel T1i), EOS 450D (Rebel XSi), EOS 400D (Rebel XT), EOS 350D (Rebel XT), Pentax K-7, K10D, K110D, K100D, K20D, K200D, Cs205 Package Content: 1 x Timer Shutter Release Cord 1 x English Instruction Manual