Improve your productivity with the Illuminx 4-in-1 Stylus. It serves as an ink pen, a laser pointer, an LED light and a point for touchscreens. This product is compatible with iPads, PCs and more. The ink pen stylus comes with batteries to get you started. 
Illuminx 4-in-1 Stylus:
4-in-1: stylus; LED light; laser pointer; ink pen
Wave length 630 to 650nm
Maximum power <5mw
Electronic capacitive rubber tip for all touchscreen devices, including iPads and PCs
Universal
Takes 3 LR41 button batteries (included)