Precision Design Universal Wireless Shutter Release Remote Control for Canon, Nikon, Sony & Pentax DSLR Cameras For most Canon, Nikon, Olympus, Pentax and Sony digital SLR and interchangeable lens (ILC) cameras Range up to 16.4 feet (5m) Invisible IR triggering beam Ideal for long exposures Reduces vibration For most Canon, Nikon, Pentax and Sony digital SLR and interchangeable lens (ILC) cameras Range up to 16.4 feet (5m) Invisible IR triggering beam Ideal for long exposures Reduces vibration CR2025 battery pre-installed