The AKG WMS470 Presenter Set is a professional multichannel wireless microphone system. The enclosed CK99 L cardioid condenser lavalier microphone provides a cardioid polar pattern and a natural sound, with a slight rise above 10kHz for added clarity. The package also includes a C555 condenser head-worn microphone featuring a cardioid polar pattern and high intelligibility, even at high ambient noise levels. Its moisture shield ensures a high degree of humidity protection for the microphone.