Foto&Tech LCD Timer Shutter Release Remote Control Cord for Sony Alpha A99, A77, A65, A58, A57, A350, A500, A550, A560, A580, A700, A850, A900, A55, SLT A57, SLT A37, SLT A55, SLT A65, SLT A77 Functions as an intervalometer, self-timer, and long-exposure timer Built in interval timer; LCD Screen with backlighting Buttons operated with a single thumb; Two-stage shutter release; Half-pressing will focus the lens; Fully pressing will trigger shutter Delay time: 0s to 99hrs 59min 59s (in one-second increments); Exposure time: 0s to 99hrs 59min 59s (in one second-increments); Interval Length: 1s to 99 hrs 59min 59s (in one-second increments); Number of shots: 1 to 399 Two AAA battery included