... the camera shutter switch (with halfway or complete pressing)2.Design for group, macro, long exposures, continuous, motion shooting, etc3.timer delay: 0s ... .Interval: 0s to 99hrs 59min 59s in one-second increments6.For Olympus E510 E520 E410 E420 E300 7.Volume:95.5mm×29 ... length:110cm9.weight:55gWe have other type:RC-201/DC0 For Nikon D700 /D300 /D300S /D200 /D1,2,3 seriesRC-201 ...