4-in-1 multi-function: Laser pointer, LED light, PDA stylus and ballpoint pen Features: -unbreakable LED bulb lasts up to 100,000 hours of use, perfect for reading or navigating in the dark. -500 yards laser emission range perfect for making impressive presentations. -durable, compact and versatile design. -amazing brightness extends visibility over one mile, suitable for reading, night security, or emergency kit. -scratch resistant tip is compatible with most pdas on the market. -classic silver plated, made of solid brass for long durability.