Mennon IR Remote Control 4 in 1 for Canon, Nikon, Pentax and Sumsung Cameras Combines functionality of RC-1, RC-5 original Canon remotes: instant and 2sec delayed shutter relea Provides functionality of WL-DC100 original Canon remote: shutter release; zoom, image and display Provides functionality of ML-3 original Nikon remote: shutter release. Combines functionality of Pentax E and F remote controls for Pentax and Sumsung cameras: shutter re Power: 3 Volt CR2025 lithium battery (included)