ATW-901a/H Wireless Headset Microphone Mic 169.505 - 171.905 MHz

The ATW-901a/H is a VHF wireless headset microphone system built for presenters, instructors, and performers who need hands-free audio with a straightforward setup. Part of Audio-Technica's System 9 line, it pairs the ATW-R900a receiver with a body-pack transmitter and head-worn microphone, offering four user-switchable VHF channels so you can avoid interference from other wireless gear in the room. The receiver's advanced dipole antenna design extends operating range beyond typical single-antenna designs by adding a ground element alongside the signal element.

The head-worn microphone delivers clear, natural sound across an 80 Hz to 13 kHz frequency response, tuned for speech intelligibility rather than a wide musical range. Balanced XLR and unbalanced 1/4-inch output jacks on the receiver mean it connects to almost any mixer or PA system, and volume control along with AF peak, RF, and power indicator lights make it easy to monitor signal at a glance. With a 200-foot operating range, this system suits classrooms, fitness instructors, and presenters who need reliable, natural-sounding audio without holding a microphone.