Compatible Camera Models:EOS 1D X MarkII, 1D X, 1DS Mark III, 1DS Mark II, 1Ds, 1D Mark IV, 1D Mark III, 1D Mark II N, 1D Mark II, 1D, EOS D2000, 5D Mark II, 5D Mark III, 5D Mark IV, 5DS, 5DS R, 5D, 6D, 6D Mark II, 7D, 7D Mark II, 50D, 40D, 30D, 20D, D60, D30, EOS-1V, EOS-3 | Shooting mode: single shooting, continous shooting, high speed continuous shooting, BULB, 4s delay shooting. 1s continous shooting: set camera to single shot mode, set transmitter to continous shot mode. High speed continuous shooting: set camera to continous shot mode, set transmitter to Bulb mode | Reduce camera shake and allows you to trigger your camera wirelessly up to 100 metres. FSK 2.4 GHz | Supports different shutter connecting cables for different brands and models of cameras respectively | Important information: If the device does not work when you receive it, please consider Replace 4pcs new batteries