This is a remote switch with an 2.6ft/80cm cord and a self timer, interval timer, long-exposure timer, and exposure-count setting feature. The timer can be set anywhere from 1 sec. to 99 hours, 59 min., 59 sec. The plug for connection has a quick-lock feature. A new dial enables you to easily enter the numeric settings with a single thumb. The LCD panel can also be illuminated, The rear of the Controller has a hole to deep the EOS series's remote control socket cap.