Pixel Timer Remote Control Shutter for Nikon cameras compatible with Nikon MC-DC2 for D90/D5000/D7000 Advanced camera shutter release tool which can be used to release camera shutter Cable unstretched length:0.4m (1.3ft); Max Stretched length: 1.6m (5.2ft) 2 AAA batteries for receiver included; 1 CR2 battery for transmitter included Self-timer, interval timer, long-exposure timer, and exposure count setting features Handy for taking pictures of subjects that are difficult to approach with minimized vibration