Given the task definition and input, reply with output. In this task, you're given five sentences, numbered 1 through 5. Your job is to generate a title for the story that makes complete sense. The title must be short, with less than three words, use simple language, and include the main topic of the story.

Sentence 1: Parker made pens for the business elite. Sentence 2: They were very expensive, being made from gold and silver. Sentence 3: Each pen he sold netted him upwards of $1,000. Sentence 4: Parker's secret was that each pen held a microphone. Sentence 5: He stole trade secrets from the businesses using the microphones.
Parker Pens