1. No Expert Required, High Quality & Reliable, Branded Product with 1 Year Warranty & Bill, 2. Easy Installation 3. Support all types of Audio/Video Door Phones 4. Suitable for Residential Building, Commercial Office, Hotel, School etc 5. Pure Stainless Steel Body, Push type Button, 4 Keys, Double Cylinder, Internal Locking for unwanted Exit, Dead Locking (Lock can be free). 6. Supports all types of Audio/Video Door Phones
