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 victims hand to, delivering a small electric shock or vibrate when it thinks a lie is being toldBut these are virtual currents that dont 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 ,Fools Day Party , Prank gifts ,Halloween Prank, Christmas gift .This is a good choiceA best choice as a gift for your friends WARM 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