These spy pens will please any young secret agent with their high tech functions. The Hidden Ink Pen allows you to mark cash, write secret messages, codes, etc. without worrying about the information being seen. The ink is invisible until examined under the UV "spy light". The Spy Listening Pen is a writing pen that also records messages, complete with special sound effects incorporated into the pen's memory. The Spy Eavesdropping Pen allows you to hear and enhance voices from a distance and is also a writing pen. Comes with volume control and earphones. All button batteries are included. Set of three individually packaged spy pens.

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