Aiphone MY-2CD is a master station for PanTilt Video Entry Security Intercom, capable of incorporating up to 2 PanTilt video door stations and 3 monitor stations. It features hands-free audio and video monitoring, all call type internal calling and communication, door release button, and selective door release control with RY-3DL adaptor. Other features include adjustable chime and pre-tone volume, brightness and contrast control, and a reset switch for system initialization.