2.4 GHz Studio Flash Trigger for Nikon –

The Studio Flash Trigger features the very stable 2.4 GHz signal transmission technology with the added advantage of being able to choose one of 16 channels helping to prevent interference with other photographers, wifi or other radio signals. The low profile, compact transmitter-receiver combination allows the synchronized triggering of a flash unit from up to 300 feet away from the camera position with shutter speeds of up to 250th of a second.
Additionally, if you have a Nikon (except D70 or D80) with a shutter release port, you can use the included shutter release cable to trigger the shutter of your camera remotely.