* Please note, a PMR receiver is required to perform this effect.MD Mini is a tiny 0.8 inch 100% plastic colour cube that you will carry daily.You can perform from up to 30 feet away and the battery can be changed.The appearance is completely seamless. The colours are white, red, blue, green, orange, and yellow.They are an exact match to other popular cubes on the market. The cube does NOT rotate like a puzzle, the only puzzle is how you can read the spectators mind! With the convenient keychain attachment and miniature size, you will carry this with you everywhere. It is very small in your pocket and super easy to remove on the spot.FeaturesAnywhere, anytimeOnly 0.8 of an inch in diameterKeep on your key ringAlways ready to performPerformance from up to 20 feet awayNo assistantsMultiple spectators