Features: 1.Delay / Self Timer (DELAY) Just like the self timer on your camera. The TM timer remote switch allows you to set any delay (in 1 second increments). 2.BULB/Long Exposure (LONG) It allows you to take time exposures up to 100 hours in length. 3.Interval Timer The Interval Timer can be set to any time period up to 100 hours as well. If you set it to 10 minutes, for example, one exposure will be taken every 10 minutes until either the film runs out or the Exposure Count limit has been reached. 4.Exposure count This setting permits you to set the number of exposures that will be taken, up to a total 399 & unlimited shots Specifications: --Power source: 1.5V, AAA Battery x2 (not included.) --Timer delay: 0s to 99hrs 59min 59s in 1s increments --Exposure time: 0s to 99hrs 59min 59s in 1s increments --Length of cable:1000mm --dimension : 150 X 38 X 15 mm --Battery life: Approximately two months of continuous shooting with a delay of 5 min, an exposure time of 4 min 56 s, and an interval of 5 min. Compatible with: Package Content: 1 * Timer remote body (Battery is not included.) 1 * Connect cord 1 * English User Manual