Features:

1) One door station can support up to 4 indoor phones.   

2) Handset audio door phone and .            

3) 10 seconds ring tones, 30 seconds active surveillance and 120 seconds intercom are available.

4) Double ding-dong ring,remote door unlocking .

5)Connection:4 or 5 wires

6) Panel: Plastic material

7) Power supply: DC15-18V

8) Consumption: Standby 0.5 W; Working status 15W

doorbell for Villa ( LFX-OA3)