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.

• 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

• 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