smart doorbell wireless 4G audio doorbell wireless doorbell with Digital Keypad for villa DZ-3407C

The audio doorbell

 Specifications/Special Features:

Outdoor station

·Our doorphone Support 3 Users+ 1 Administrator.

·The smart doorbell Support Any Phone [Any Mobile Or Land-line Phone Regardless Of Region].

·The access control No any installation or wiring required for indoor apartment.

·Save construction cost more than 80%,No need professional,finish installation by own


·nbuilt Quad-band 850/900/1800/1900Mhz GSM module, 3G & 4G is optional;

·Secure-using caller ID for identification, unknown callers are ignored.

·Support the ability to edit resident information via text message commands.

·Support password opening.

·Relay Outputs (NC/NO) for outdoor station.Option 1 or 2 doors


·User friendly design, alloy outer case and enduring lifespan;

·Working voltage:DC12V-15V;

·Surface mount;