Audio-Technica ATW-2129CI System

The ATW-2129CI is a single-channel lavalier system from Audio-Technica's 2000 Series UHF line, aimed at presenters, houses of worship, and AV rooms that want frequency-agile wireless without a complicated setup. It pairs the ATW-R2100 receiver with an ATW-T210 UniPak body-pack transmitter and ships with an AT829cW cardioid lavalier ready to clip on.

The receiver runs True Diversity, choosing the stronger of two antenna sections to cut dropouts as the presenter moves, while Tone Lock tone squelch keeps stray RF from opening the channel. Automatic frequency scanning finds a clean channel from 10 user-selectable options across Band I, 487.125 to 506.500 MHz (TV 16 to 20).