Please read the warnings carefully before using the instructions! Not suitable for children under 14 years old. not suitable for people with heart disease or implanted electrical devices. The battery DOES NOT contain the delivery.First place your hand on the groove of the polygraph, be sure to touch the sensor of the instrument, press the function key. When the function key is pressed, the question and answer begins, and the person who beats the heart will be punished.Two punishment functions: Vibration penalty and current penalty, The current emitted by the product is harmless to the human body. Do not use patients who react strongly to electric shock. The shy person suggests choosing vibration! It's a shocking and scary game. You can test someone or your friends if they tell the truth in truth or in a shocking game. This would be a good warm-up game at a party. The best party toy. A good gift choice, ideal for playing with your friends at the party. Also very suitable as a birthday gift, Christmas gift, Halloween gift, holiday gift, gift for friends, parents, employees, etc.