ATACE DND/MUR (Do Not Disturb / Make Up Room) module is a simple way for guests to communicate with staff from their rooms. Either don't want to be disturbed or need your room to be cleaned, it is as simple as touching a button. The product includes a doorbell button to announce visitors in a kindly way. Besides, the doorbell can be disabled when the “Do Not Disturb” is active. The module needs only two AA batteries to power on, it makes it an easy deployment, with no wiring or power cable connections.