Inspired by viral challenges that have gathered billions of views across the Internet, this game tests one's ability to remain calm under pressure. Players wear the Cool-O-Meter unit that measures heart rate, and the opposing team rolls the dice that will determine how they'll try to get a player to get flustered. For example, opponents might have to get up close to the player and sniff them, or make pig noises. If the player reacts -laughs, cringes, flinches, etc., their heart rate may go up and the meter will rise. They might think that they can hide their reactions, but the Cool-O-Meter will show what's really going on! When the meter gets high enough, the lights get to red, the alarm will sound, and the opponent wins that round for making them lose their composure." Includes Cool-O-Meter unit with built in timer, lights, and sounds, 3 action dice, and instructions." See who is cool under pressure" Stay calm or get the alarm" Cool-O-Meter unit measures heart rate" Ages 12 and up" For 2 or more players." 3 x 1.5V AAA Alkaline Battery Required (not included)" Heart meter is for entertainment purposes only. This product cannot be used as a medical device for heart rate monitoring.