projector came with a blue pen and an orange pen, identified by the
color strip at the end of the pen. You can use either pen, or both
pens at the same time (one of each color) in built-in whiteboard or
Make sure the pen batteries are installed.
Note: The pen
turns off automatically after 15 seconds of inactivity. Hold the
pen to turn the pen back on.
||Attachment for optional strap or