ADJUSTABLE DIFFICULTY LEVEL Make each round different from the previous ones by manually adjusting the airstream on the target shooting gallery. Make the balls float higher or lower -- it’s your call. Products include 1 Target Shooting Gallery (Requires 4 (AA) batteries. Not included) 2 Foam Dart Gun 10 Hovering Ball Targets 10 Foam Darts 5 Knockdown Targets USB Power Cable Ages 8+