Bank Counter Window Intercom System Dual-way Intercommunication Microphone Interphone Speaker System 3W

Bank Counter Window Intercom System Dual-way Intercommunication Microphone Interphone Speaker System 3W

Ideal for the bank, securities, hospital, bus station etc. where guard glass again theft is installed. <br /> - Streamline design. Main unit has internal microphone for extension. One-wire connection and simple installation. <br /> - High quality speaker for main unit and extension. High sensitive microphone. Longer metal tube microphone for dual-way intercommunication; <br /> - Adjustable volume with separate switch. <br /> - Auto dual-way intercommunication without pressing any button; <br /> - Double-track adjustment with indicating light; <br /> - Spare record jack for the bank; <br /> - External speaker, slim fit design; <br /> - Anti-interference and noise-free function; <br /> - Dual-way audio record output <br /> <br /> Specification: <br /> - Power Adapter: Input AC 110V 60Hz US Plug. Output AC 9V 1.0A; <br /> - Output Power: 3W(Max); <br /> - Frequency Response: 100Hz-12kHz; <br /> - Desktop Unit Dimensions: 158*87*46mm; <br /> - Wall Mount Unit Dimension: 70*20mm <br /> <b>Trouble shooting:</b> <br /> <b>Whistle: Installation environment noise performance is poor, or too much other noise. Should make the distance larger between the host and the outside speaker or adjust the volume down.</b>