1 com.bumpykeys.BumpyKeys Bumpy Keys for your classrooms Two settings, read on the device and sent nowhere. Leave one out and the device keeps its own (the Grown-ups setting a teacher or parent can reach after the press-and-hold). Race together rooms between devices (four-letter room codes through our relay at rooms.bumpykeys.com). Device's own setting leaves the Grown-ups switch to the teacher or parent. Off hides and disables rooms on every device; the Grown-ups switch shows "Set by your school". On keeps them available, and the switch is still the school's. Quiet keeps music and key sounds off on every device. Bumper's voice and the sound effects stay. In Grown-ups, Sound, the Music slider reads "Set by school". Device's own setting leaves the sound to the teacher or parent.