Adorama Wireless Radio Remote Release for Nikon D100/D200/D300/D2X/D2XS/D3 Digital SLR Cameras (Nikon 10 Pin) Omni-Directional Wireless RF Radio Remote Release Consists of Receiver which connects to camera's cable release socket and Sender Range of over 100 feet 16 channel Two position switch (one for focusing of camera and one for shutter release)