The Hall Technologies HT-OSIRIS-DSP1 Microphone Controller is a central audio processing device for extended sound pickup systems in classrooms, conference rooms, etc. It can be connected to ComAlert™ Ceiling Microphones and ComAlert™ Wireless Microphones and can also be connected to external systems via physical interfaces (items sold separately). It has a Web interface for controlling the unit and easy setup. It can send Alert Messages to Safety and Emergency Systems. It provides Mixing and DSP control of all connected Microphones.