The Quartet 4 Function Red Laser Pointer (Silver) from Apollo is a laser pointer that has three other capabilities: it can also be used as a PDA stylus, ballpoint pen and LED light. While using it, you'll be able to underline and create a strobe effect. Encased in an all-metal design, the pointer is durable enough to stand up to frequent usage. The pointer projects a red dot that can be seen from up to 450' away, making it ideal for small venues. This is a class 2 laser and the (4) LR41 batteries required to power it are included with the device.