The Audio-Technica ATW-2120B is a professional UHF handheld wireless microphone system from Audio-Technica’s 2000 Series, designed for dependable live sound performance in venues, events, and installed applications. Operating in the 606.500–631.000 MHz U Band, the system provides up to 10 user-selectable channels with automatic frequency scanning for quick and easy setup. Tone Lock™ squelch technology helps minimize interference, ensuring a stable and clean audio signal even in challenging RF environments.

At the heart of the system is the ATW-R2100b true diversity receiver, which uses two antennas and two independent RF sections operating on the same frequency. Intelligent circuitry continuously compares both signals and automatically selects the stronger one, significantly reducing dropouts and improving overall sound quality. The receiver also includes a switchable output attenuator that can reduce the output level by 12 dB, allowing flexible integration with a wide range of audio systems and mixers.

The system includes the ATW-T220a handheld dynamic microphone/transmitter, featuring the same microphone element used in the PRO 41 dynamic handheld microphone, engineered for professional live-sound environments. It offers switchable high/low RF power for adaptable performance and includes charging contacts for use with an optional multi-unit charging station. The transmitter delivers a frequency response of 100 Hz to 15,000 Hz and operates within a typical range of up to 100 meters (300 feet), maintaining reliable FM-modulated transmission with phase-locked loop frequency control for stability.

Designed to perform in temperatures ranging from 5°C to 45°C, the ATW-2120B combines rugged construction, true diversity reception, and flexible frequency management, making it a practical and dependable wireless solution for performers, presenters, and sound professionals seeking consistent live audio performance.