Neewer Digital LCD Timer Remote Controller Replacement MC-DC2 for Nikon D90 D5000 D5200 D7100 D4 Digital SLR Cameras Time delay: 0s to 99hrs 59min 59s in one-second increments Exposure time: 0s to 99hrs 59min 59s in one-second increments Interval: 1s to 99hrs 59min 59s in one-second increments Number of shots: 1 to 399,- -(unlimited) Battery life: Approximately two months of continuous shooting with a delay of 5 min, an exposure time of 4 min 56s, and an interval of 5min.Use of the illuminator will reduce battery life.