These are Ride Watches that attach to the Kamen Rider Zi-O belt for play. They are all from candy toys, etc. (The top buttons cannot be pressed.) When you press the small button on the side, it makes a sound, and you can actually attach them to the belt. Operation confirmed. Please note that only the red and green colored one on the far right does not make a sound (unknown if the battery is dead). These were played with by a child, so please understand.