Clear channel UHF operation for optimum interference-free performance in any application or locale Half-rack receiver design with folding front panel dual antennas Unique snap-out panel locking tabs for optional single receiver rack mounting Nady's proprietary companding circuitry for an industry best 120dB dynamic range and the clearest, most natural sound available Tone Squelch for locking out potential interference UHF-3 receiver with DigiTRU Diversity for maximum range and dropout protection, full LED indicators, ½' unbalanced and XLR balanced outputs; special circuitry for noiseless transmitter On/Off switching UB-3 Bodypack Transmitter: Audio mute switch allows convenient audio muting with the transmitter on UB-3 Bodypack Transmitter: Bi-color LED status indicator: Unit On (green); low-battery alert (orange) UB-3 Bodypack Transmitter: Locking 3.5mm mini-jack provides secure connection for removable microphone or instrument cable