8
conditions to aVoid
1 . avoid direct sunlight .
2 . avoid low color temperature light source, such as tungsten, halogen, or
incandescent lamp .
3 . avoid uneven or irregular surfaces . place the product on flat surfaces .
4 . avoid transparent or reflective surfaces such as glass and mirror .
5 . avoid placing any objects within the space between the main unit and the laser
projected keyboard layout .
note: because this product uses infrared rays, strong infrared radiation from direct
or reflected sunlight or from tungsten (halogen or incandescent) lighting may cause
operating error .