... MAKE UP,PLEASE WAIT, Room No. indicator. 2.Touch panel, clear LED indicator. 3.Apply for hotel Product feature:"DND" " ... doorbell, four-in-one doorbell, big room number doorbell, disc big room number doorbellApplicable to hotels, guesthouses, apartments, ... plastic frame too.Plastic: Hotel doorbell (touch panel)/Hotel doorbell system/ hotel room control panel/electrical hotel bell/door chime/door bell ...