① Merry-go-round music box → It's designed so the music box plays when wound counter-clockwise. When the red switch on top is turned ON, the lights flash vividly. ② Gramophone music box → Turning the knob on the bottom clockwise and moving the gramophone needle to the record causes the record to spin and the music box to play. ③ Wooden airplane tower music box → Turning the knob on the bottom clockwise causes the airplane on the tower to rotate while the music box plays. ④ The operation and sound of the music boxes ① to ③ have been confirmed, but please refrain from purchasing if you are looking for perfection.