Studiohut Timer Remote Control Shutter for Canon EOS 1D, 5D, 10D, 20D, 30D, 40D, 50D & 5D Digital SLR Cameras compatible with Canon TC80N3 Advanced camera shutter release tool which can be used to release camera shutter Features an illuminated LCD panel and an alert sound which can be turned on/off One manufacturer's year warranty from date of purchase. 2 AAA batteries 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