Audio door phone for multi apartment

Features and Advantages

1. Latest chips, clear intercom effect
2. Intercom and unlock when someone call at the outdoor
3. Pich up the indoor phone, press "TALK" buttom to speak to theoutdoor when standby
4. 2-wire system, Easy installing.

5. 2 Buttoms, Easy operation. 

6.  Nice appearance and High cost performance.

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Classic style, stable quality Audio door phone for multiapartment