It's so simple, anyone can use it. From the novice to the seasoned pro, get exact control of your off camera flash for the perfect Nikon exposure, and it's all wireless. For the beginner, just connect the Air Remote to your Nikon's hot shoe, set the camera to "P" program mode, turn on your light and shoot away. The TTL (through the lens) technology will automatically sync the camera and flash for correct exposure. For the pro, you can run your camera in manual mode and dial in just the right amount of light you desire. Features High Speed Sync technology. The unit will allow you to shoot at very high shutter speeds, allowing greater control of ambient light. Perfect for shooting outside, just adjust your exterior exposure by increasing shutter speed (reducing the ambient light), then light your subject with a smaller light, like a Profoto B1, and take your shot. The HSS will sync the fast shutter with the B1. The B1 is a 500ws battery powered monolight that will produce up to 200 full power flashes on 1 charge.