Dell S510 Interactive Projector - Manual (Page 7)

Your Dell Projector 7
About Your Interactive Pen
You can navigate, select, and interact with your computer programs from the
projected screen using the interactive pens just as you would a mouse.
1 Power switch
2 Power indicator
As you turn on the pen, the power indicator flashes a few seconds
and goes off.
Green: Normal operation
Red: Battery is low
No light: Battery is empty
3 Wrist strap holder
4 Battery compartment access. Turn to open and replace batteries.
5 Pen tip
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2
4
3
5