... .DND,MAKE UP ROOM,DOORBELL 3.zinc alloy 4.Hotel door bell system HK Lanton company,manufacturer for hotel security locks since ... .One for one room,be convenient use,and Safe. Hotel Door bell system: Super bright LED digital tube display hotel room number ... (Do Not Disturb) / Make up room / Please wait /. Hotel Doorbell system,details: Case Material: Imported fireproof PC plastic Shell color: Senior ...