Yongnuo Timer Shutter Release Cable TC-80 N3 for Nikon D90 D5000 1. Delay / Self Timer (DELAY) Just like the self timer on your camera. Self-Timer: 0s to 99hrs 59min 59s in one-second increments. 2. Interval Timer (INTVL) The Interval Timer can be set to any time period up to 100 hours as well. 3. Long-Exposure Timer (Bulb-mode): 0s to 99hrs 59min 59s in one-second increments 4.Exposure Count: 1 times to 399 times. 5.Power Supply: Lithium CR2032(3V) Button Battery.