*Prevent your finger from touching the wrong button and make *the screen greasy and foggy.

Function:

*Infrared technology

*Touch pen, Page up and down, Laser pointer, ballpen built in flash memory optional(64MG-16GB)

*contorl distance : 15m

*Laser distance: up 200m

*Laser output: < 1mw(Class II), < 5mw(Class III)

*Laser wavelength: 650nm

*Material: Brass

*Battery: LR41*3pcs

*Dimension: 14*1.07cm

*USB plug systems: Windows 98, Se, Me, MacOs, Vista, Linux