The OMNITRONIC UHF-E Series Handheld Microphone is a wireless handheld transmitter with a dynamic cardioid capsule and fixed 529.7 MHz carrier frequency. It operates in the UHF 518–548 MHz band and provides a line-of-sight range of up to 60 m. The transmitter uses two AA batteries, has a 10 mW RF output, an on/off/mute switch, charge-status LED, black plastic housing, and a frequency response of 50–20,000 Hz.