It also functions as a timer remote and can be programmed to function as an intervalometer. * This remote control with an 90cm 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 hrs., 59 min., 59 sec. The maximum number of exposure is 399. * Works with Samsung NX1000 NX20 NX210 EX2F, replaces Samsung SR2NX2