For more versatility, this presentation pointer works as a Class 2 laser, PDA stylus, ballpoint pen and LED light. Best for small venues, it projects a red dot. Class 2 is safer to use because it is less powerful. However, it is still highly visible in any room condition and can be used on any medium. Durable, all-metal body. Stylus is compatible with resistance screen devices only.Package Includes: (4) LR41 Batteries