Vello Shutterboss Version II Timer Remote Switch for Canon with 3-Pin Connection For Canon EOS DSLRs w/3-Pin Connection | Wired Remote Controller | Power Off and Reset Options Set Timer Delays & Intervals | Set Number of Shots/Unlimited Shooting | 4-Line Backlit LED Display Take Photos without Camera Shake | Great for Time-Lapse Recording | Powered by Two AAA Batteries In The Box: 2 x AAA Alkaline Batteries, User's Manual, 1-Year Limited Manufacturer Warranty