Just 4 LEDs and 4 push buttons provide hours of fun. The objective of the game is to repeat a randomly generated pattern. The pattern is played both visually and audible or visually only (selectable). It features 4 difficulty levels, which can be selected at start-up. The replay speed gradually increases during the game, to make it even more challenging. Low power consumption. Microprocessor-controlled. Auto power off. Manual update: some minikits include a new type of battery holder. Please consult this new manual update to assemble the new battery holder. Just 4 LEDs and 4 push buttons provide hours of fun. Manual update: some minikits include a new type of battery holder. Please consult this new manual update to assemble the new battery holder. It features 4 difficulty levels, which can be selected at start-up. Low power consumption. Microprocessor-controlled. Dimensions: 50 x 65 mm / 2.0 x 2.6"