D3 is a WIFI Fingerprint Smart Door Lock,its app name is UsmartGo.it is popular because of elegant design and stable quality.D3 has built-in doorbell function,when vistors ring doorbell,we can see who is standing in front of your doors.this bring you higher security.D3 support fingerprint,cards,password,mechnical keys and App to open doors.
|One-piece molding + baking varnish
|Fan Hai San Jiang
|Standard Carton Packing Info
|1set Packing Info