8 users audio door phone for multi apartment

Specifications

8 users audio door phone for multi apartment
Direct calling and dual talking
Remote control electrical lock
CE,FCC,Rohs

8 users audio door phone for multi apartment 

• Speak to the person at your door, everywhere in and around your house!
• Hear and answer the doorbell anytime and anywhere, including in the garden, at the attic, in the hobby room, in the bathroom, in the garage etc.
• You dont have to walk to the door anymore; open the door remotely (with optional electric door opener).
• Always a safe feeling; you know who is at the door before you open it.
• Ideal in case of illness or physical disability.
• Available with 1 or 4 doorbells and easy to expand with one or more handsets (with intercom function).