Wireless adjusting flash settings:

The FT-16S trigger set can wireless adjust the following settings: the flash power ratio, the on-or-off of the buzzer and the modeling lamp or the AF-assist beam, as well as the power-ratio display mode. On the transmitter and the receiver, set the channel select switch to the same position and the Power Control Group Select Dial to the same grade. Insert the receiver into the Wireless Control Port of the flash unit. Then power the flash on. Adjust the flash settings on your transmitter.

Wireless Triggering the Flash:

On the transmitter and the receiver, set the Channel Select Switch to the same position Insert the receiver into the Wireless Control Port of the flash unit. Then power the flash on. Press the Test Button to fire a flash. Alternatively, you can set the transmitter onto the camera's hot shoe and press the camera's shutter-release button to fire a flash.