The ATW-R2100b wireless receiver is intended for use with the Audio-Technica 2000 Series wireless microphone systems. The receiver features UHF diversity reception, 10 user-selectable frequencies, automatic frequency scan, and Tone Lock squelch system for interference-free reception. Balanced XLR and 1/4" phone connections adapt to professional and consumer gear, and a bright LCD display delivers a comprehensive read-out of settings in dimly lit conditions.