The battery-operated Memory Trainer from Trixie is a challenging intelligence game for dogs of all ages. It consists of a food container and a trigger with a sound signal. The dog must activate the trigger with its paw or nose to release treats from the food container. Once the dog understands that the trigger and container are connected, the distance can be increased up to 40 meters. The difficulty level of the game is gradually expanded, continually challenging the dog. The placement options for the trigger are also variable; it can be placed flat on the ground, attached to a wall with a suction cup, or secured in sand or grass with a stake.