The
Kensington Pocket Presenter Wireless is the simplest of presenters to
use. It has four buttons, of which you'll use only three the majority of the
time.
The Right and Left Arrows (1) move a PowerPoint® slide presentation forward and backward. This is the equivalent to the PgDn/PgUp keys, the Spacebar/Backspace keys, the Right/Left Arrow keys, and the Down/Up Arrow keys.
The Stop (red square dot) Button (2) blanks the screen in PowerPoint®. This is the same as pressing the [B] key while presenting. Press the Stop Button again to restore the screen.
What's that thingy hanging out of
the bottom?

This is the USB transmitter. Remove this from the remote and plug it into a USB port on your computer. This connects the Pocket Wireless Presenter to the computer.
NOTE: The width of this transmitter makes it easy to plug into the network port. Needless to say, it WON'T WORK if you plug it into the network port. Look at this diagram to make sure you plug it into a USB port.
