CWS-8300R HOST Unit CWS-8000 Series. Carrier Frequency 2.4GHz (2400-2483MHz) Adaptive Digital FHSS Technology. Operating Range upto 40 meters. Frequency Response 70-15,000Hz. Power Supply: 12V DC from AC Adapter. Host unit should be used together CWS-8100C Chairman Unit, CWS-8200D Delegate Units and GN -45 Gooseneck Microphones.