Lie Detector is a really fun toy to play with your friends, especially for truth party game. The polygraph has two kinds of punishment functions: Electric Shock or Vibration. Put tester's fingers on the sensing slots of the lie detector, it will punish the liar when his heartbeat speeds up. Made of high quality ABS material, durable in use. Powered by 3 x AA batteries (Not included), Easy to use.Package Includes: 1 x Micro Electric Shock Lie Detector Requires 3 x "AA" batteries ( no included)An interesting and little frightening liar shocking game. You can test someone or friends if they are telling the truth in the truth-or-shocking game. It would be a great warm-up game at a party.You strap your victim's hand to, delivering a small electric shock or vibrate when it thinks a lie is being toldBut these are virtual currents that don't harm the body.Totally 5 LED lights of 3 green and 2 red ones. The lie you say bigger, more lights on. When all 5 lights on, you will be punished heavily by electric shock or vibrate .The portable lie detector is a table top device Toys for your friends ,Fool's Day Party , Prank gifts ,Halloween Prank, Christmas gift .This is a good choiceA best choice as a gift for your friendsWARM REMINDER: This is not a professional polygraph tool, so there is no 100% accuracy of a polygraph, but it is still a very fun and great toy to play with friends and family