Nothing is more frustrating than a friend or neighbor paying you a visit only to be neglected at the front step. This Doorbell Intercom Security System that lets you hear a person calling at your door before you open it. This auction is for a brand new wired intercom system that is ideal for house, office, shops, hotel, tire building and factory, etc. When visitors press the remote button, will give wonderful music. This wired Intercom Security System is suitable for the villa with one door and three main rooms. Sounds from three indoor units will be heard when someone presses the button of outdoor unit. Missing important deliveries visitors or clients will be a thing of the past when you install this fantastic Doorphone Intercom Security System.Just take this wired doorbell home. Really a wonderful choice for you!