Brand D Debra Color Black Ear Placement In Ear Form Factor In Ear Frequency Response 5.8E+2 MHz About this item The PRO UHF Mono Wireless In Ear Monitoring System: D Debra audio's new UHF system with phase-locked loop PLL. It using high-quality IC chips, improves the overall performance, anti-frequency reduction, anti-series frequency, has a stronger and more stable signal, better signal to noise ratio. The frequency range is 510 MHz-580 MHz. The preset 100 frequencies for each channel can be switched at will, which can better avoid signal interference. Suitable For Multiple Places: Built-in limiter circuitry eliminating distortion under excessive input levels. Front panel 1/4-inch monitoring has the headphone jack. Back panel have 6.35 mixed input and two channel independent integrated interface input. Good used in stage, broadcast, recording studio, musicians, band performance. Feature Design: The transmitter has LCD display panel, RF and AF display. The receiver is equipped with LCD display, power supply and RF receiving indicator. The panel can monitor battery power. More Stable Signal, Longer Effective Distance: On an unobstructed open stage, the effective distance can reach 300 meters. The good the signal-to-noise ratio of the dynamic range, the good anti-interference and the perfect original sound reproduction