It suit Windows XP Windows Vista and Windows 7.
Red laser pen: in most background can be easily seen.
Use distance for as long as 15 meters: can you make in the room free walk around and interact with the audience.
he battery power indicator: can make you understand the power balance situation,
on/off switch can extend battery life.
Intuition type slide control button: can make you survey presentation material.
Button a touch vested.
The design of the exterior of the smooth feel perfect achievement