OMNITRONIC UHF-600 bodypack transmitter for UHF-600 receivers, operating in the license-free UHF ranges of 823–832 MHz and 863–865 MHz. It uses PLL multifrequency transmission and infrared synchronization with the receiver. The transmitter provides four-step gain adjustment, an LCD display, charge-status indication, mute control, and ultra-low latency below 3 ms. It is powered by two AA batteries and offers a line-of-sight operating range of up to 60 m. A cardioid headset microphone is included.