DAVTECH Dual-Way Intercom System - Noise Reduction High-Quality Sound Sleek Aluminum Design Ideal for Banks & Hospitals - Easy DIY Installation

key1: WI13. Product Features. 1. Auto dual-way intercommunication, anti-interference and noise-free function. 2. Special antiside tone processing chip, with automatic squelch function, and can effectively eliminate the squeal. 3. With unique circuit and design, in the same time period only one side can speak, and the other side will be not allow to speak, so as to ensure the both sides can clearly hear the expression of each other. 4. With recorder jack, can output both route's sound and signal. 5. Adopts highpowered microphone, elegant appearance, the voice is lifelike and clear, the volume of master station and substation can be adjusted separately. Technical Parameters. Working Voltage: DC12V. Max. Working Current 200mA. Output Power 2W+3W. Microphone sensitivity-10oC~60oC. Work environment term 10Hz-15KHz. Window Speaker System. Twoway voice intercom communications technology automatic identification of processing speech signals during a call does not require any action, this model