A) Shutter Release: Has the ability to be a wireless shutter or a shutter release cable.
Auto-Focus, Continuous Shooting, Long Exposure, Half-Way Pressing, Full-Way Pressing.
You still have the ability to use the shutter button on your camera or the transmitter.
-Attach the receiver to your hot shoe
-The trigger controls the camera, using your camera settings to control shutter speed and shooting length
-Turn on Receiver, and be sure that both the trigger and receiver are on the same channel.
-Press trigger half way to focus picture and full way to fire shutter
-If you do not have a hot shoe, you can use the item as a shutter release cable, by attaching provided Shutter Release cable to trigger and camera.
-Enjoy the same functions as a wireless shutter such as Long Exposure and Continuous Shooting
B) Wireless Trigger: Has the ability to wirelessly fire a monolight or an off-camera speedlite.
Monolight
-Mount the trigger to your camera's hotshoe mount.
-Attach the LS-02 cable to the receiver.
-Insert into the socket of your studio monolight.
-Turn on Receiver, and be sure that both the trigger and receiver are on the same channel.
-Once your camera shutter is pressed, your camera and monolight will fire simultaneously.
-3.5mm cable to 6.35mm adapter included for use with different size monolights, such as the Cowboy Studio 300wstrobe light
Speedlite
-Mount the trigger to your camera's hotshoe mount.
-Mount your speedlite directly onto the receivers hotshoe.
-Turn on Receiver, and be sure that both the trigger and receiver are on the same channel.
-Once your camera shutter is pressed, your camera and speedlite will fire simultaneously.
--Additional receivers available for triggering multiple monolights and speedlites.