The Phonak KWC TX-300V is a professional FM wireless transmitter designed for assistive listening systems in educational, corporate, and public venue applications. Its primary function is to broadcast clear audio from a source—such as a microphone, audio player, or sound system—to individuals wearing compatible FM receivers, typically for the purpose of hearing assistance, language interpretation, or tour guiding. The transmitter operates on a selectable VHF frequency band, allowing for multiple channels to be used simultaneously within the same location to avoid interference.

This model is engineered for reliability and ease of use in fixed installations or portable setups. It features multiple input options, including XLR and 1/4" connectors for microphones or line-level sources, with adjustable gain controls to optimize the input signal. The unit includes controls for frequency selection, output power adjustment, and may have a built-in microphone for ambient sound pickup or paging. Designed for continuous operation, it is housed in a sturdy casing suitable for rackmount installation or desktop use and can be powered by AC power or external battery packs for mobile applications.

By providing a robust and flexible wireless audio transmission solution, the Phonak KWC TX-300V enables venues to comply with accessibility regulations and enhance communication for individuals who are hard of hearing or require audio translation, ensuring they receive a direct, high-quality audio feed free from background noise and distortion.