Friendly operation and sensitive reaction make it easier to be controlled - Includes one transmitter and one receiver - Instantly trigger the shutter without disturbing the camera in the distance - Widely used to minimize the camera shake for macro shooting or long time exposure or used to take subjects that are difficult to approach - Transmitter powered by 2*AAA batteries (included) - Receiver powered by 1*CR2 battery (included) - Receiver standyby time up to 45 hours - Transmitter distance: 100 Meter - English and Chinese user manuel included - Compatible with Nikon D3 series D2 series D1 series D700 D300 D200 N90S F5 F6 F100; Fuji S5 Pro/S3 Pro; Kodak DCS-14n