MX introduces PRO Interphone Microphone, a two-way counter communication system, exclusively designed for easy and effective conversation across counters with transparent security barriers. It consists of an attendant unit, a customer unit and a power supply unit, which are easy to install and simple to connect through dedicated cables as supplied with the system. MX PRO Interphone Automatic Duplex Intercom System, the System is widely be used at any noisy places or difficultly talking places. For example: bank, securities company, post office, train station, payment counter, insurance company, tickets selling house, hospital.