Features: Current-Mode and Vibrate Mode: Challenge different models to meet different needs, enjoying more fun. Interesting and Frightening: You can test someone or friends if they are telling the truth in the game. Party Warming-up : If you are not telling the truth, you will be punished. A great warm-up game at a party. Easy to carry: Made of high quality ABS plastic, it is lightweight and durable, making it easy to be carried out. Good gift: The portable lie detector is a best choice as a gift for your friends, and the person who receives the gift will have a lot of fun. Package Includes: 1x Environmental friendly Lie Detector Specifications: Material: ABS Plastic Size: 160x160x80mm/6.29x6.29x3.14Inches Color: Silver Power supply : 3xAAA Batteries(not included) note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.