The Hill Audio WMU-116 is the entry into the professional level of wireless microphones, offering switching diversity which enhances reception stability. The 16 available frequencies are conveniently arranged in groups of 3-4 presets, making sure that interference-free channel combinations are instantly available. Frequency changes are fast with IR synchronization between receiver and transmitter, avoiding accidental changes by the microphone user. The large LCD display and the intuitive settings make operation a breeze. Both transmitters and receivers are housed in rugged cabinets and the transmitters utilize low-power circuitry for extended battery life.