Williams Sound PFM PRO RCH Personal FM Listening System, 17 Selectable Channels 72-76 MHz, Operates up to 150’ (46 m), Improves Listening for Individuals or Groups

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About Williams Sound PFM PRO RCH Personal FM Listening

Williams Sound PFM PRO RCH Personal FM Listening System, 17 selectable channels 72-76 MHz, Operates up to 150’ (46 m), Improves listening for individuals or groups The rechargeable PFM PRO RCH deliver superior audio directly to the ear, enhancing sound at home, work, or school – anywhere background noise or distance from the source makes listening difficult. A versatile 3.5mm jack allows for a variety of earphones and headphone options. Key Features 17 selectable channels 72-76 MHz Auxiliary input - broadcast any audio source Operates up to 150’ (46 m) FM signal, compression, mute control Improves listening for individuals or groups Specifications EAR 041 EARPHONE Nominal Impedance: 16Ω Freq. Response: 20-20kHz Max Power Input: 5mW Sensitivity: 104 dB @ 1kHz HED 021 HEADPHONE Nominal Impedance: 32Ω Freq. Response: 20-20kHz Max Power Input: 100mW Sensitivity: 110 dB @ 1kHz MIC 090 MICROPHONE Nominal Impedance: 1500Ω @ 1kHz Freq. Response: 20-18kHz Max Input Sound Level: 110dB SPL Sensitivity: -56dB ± 3dB PPA R37 FM RECEIVER AFC Range: ± 120 kHz Sensitivity: 2 µV at 12 dB Input Overload: 100 mV Frequency Response: 200 – 15 kHz Signal-to-Noise Ratio: 65 dB min @ 100 uV Receive Antenna: Integral with earphone/headphone cord Audio Output: 35 mW max, peak into 16 ohms PPA T46 TRANSMITTER Stability: ± .005%, frequency synthesized, crystal reference, PLL Modulation: Wide-band FM, 75 kHz peak, 75 µS pre-emphasis RF Output: 80 mV/m at 3 m Frequency Response: 180 Hz to 13 kHz Signal-to-Noise Ratio: 65 dB Transmit Antenna: Integral with microphone cord