UHF-4100HL Wireless Headset/Lavalier System provides clear, accurate vocal reproduction without the burden of cables, ensuring wired limitations never force you to sacrifice passion or energy during a performance. Ideal for DJs, presenters, fitness instructors, singers, MCs and anyone seeking a high-quality wireless headset or lavalier solution, the UHF-4100HL offers superior reliability and ultra-clear reception at a completely affordable price. Built to withstand the rigors of consistent use at events, meetings, auditoriums, fitness studios and houses of worship, the UHF-4100HL features a robust 100-channel UHF receiver with a range of 250 feet. Using Phase Locked Loop (PLL) circuitry to prevent phasing issues that plague other wireless systems, the receiver’s front panel provides a Power button and rotary Volume control, along with Group and Channel adjustments for setting the desired frequency. RF and AF LED indicators also let you monitor incoming signal strength, while balanced XLR and unbalanced ¼-inch outputs offer true connecting convenience. The unit even gives you the option to set your frequency manually or allow the receiver to automatically find an optimal frequency. For outstanding versatility, the UHF-4100HL includes a comfortable and convertible lightweight headset with a detachable lavalier microphone. So, whether you’re leading a fitness class or giving a presentation, this system has you covered. And to ensure exceptional audio quality, the UHF-4100HL’s professional-grade microphone employs a condenser element with a cardioid polar pattern and includes foam inserts to reduce wind noise and popping. The discreet belt pack transmitter also provides a convenient Power/Mute button and runs on two AA batteries with up to eight hours of battery life.