Smart Technologies iNTERACTIVE PEN DISPLAY DT770. - Manual (Page 30)

24 Cleaning the DT770
Cleaning the Tethered Pen
To clean the tethered pen, gently wipe the pen with a damp cloth.
CAUTION
The tethered pen is a sealed unit that contains electronics but no batteries. If you
attempt to open the tethered pen, you’ll damage these electronics. This makes the
tethered pen unusable and voids the warranty.