RL-3206B Apartment Home Security Doorphone Audio Doorbell ，2- wire intercom system unlock function

Parameter data:

Specification1. Two way intercom, one way call and lock function 2. Two wire connection 3. With a new ABS plastic, durable 4. Excellent consumer side of the tone circuit, intercom voice clarity 5. Effective distance of 300 meters above intercom 6. Easy installation easy use 1. Audio distortion rate of 50mW 2. Talk time: unlimited, free calls 3. Input voltage: AC220V 50Hz, Output voltage: AC12V 1200mA 4. Frequency response: 300 ~ 3400HZ 5. Working voltage: DC12V 6. Power consumption: static <0.2W, call status <2W Notice: The delivery time of international transportation may be delayed out of seller’s control by various factors related to logistics companies, customs, holidays, local weather, etc. Thanks in advance for your understanding!