The AKG HT 4500 is a professional-quality wireless handheld microphone transmitter that can be used as part of a WMS 4500 wireless system. Ideal for a wide variety of applications, there are 6 different interchangeable mic elements available, including dynamic and condenser cardioid and hypercardioid capsules. The mic operates on a 30MHz UHF band and has up to 1200 selectable frequencies with several preset frequency banks for quick matching to a receiver.