Mini Lie Detector: – Put your hand on the toy. If you tell the truth, you can safely break away from it, or if you tell a lie or give an unacceptable amount of half-truths, you get an electric shock. It has a strong vibration of level 2 and may cause you pain, but it is not dangerous. With the built-in lie detector, the truth can be displayed via LED meters. Lie Detector is a really fun toy to play with your friends, especially for truth party game. This is a great party toy that brings a lot of fun to the party. This toy may not be accurate, but it is very interesting and can be played with family and friends.RD