Interference-free operation on select UHF frequenciesCompact and easy to operateExcellent high-fidelity audioProprietary companding circuitry for 120dB dynamic range150+ ft. typical operating range, up to 300+ ft. line-of-sight Power, Signal, AF LED status indicatorsAdjustable output level for optimal soundPhone jack output for easy connection to sound systemInput volume control for proper level adjust Off/Standby/On switch Status LED indicator Low-battery alertLocking 3.5mm mini-jack