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The PR-75a AutoSmart-Tuning Receiver from Comtek is ideal for auditory assistance and other personal communication. The receiver automatically tunes itself to the closest transmitter when it's turned on, so one receiver can be used to tune in to multiple receivers. The receiver runs on 2 AA batteries so it can work anywhere even when you're not near an outlet. The audio output jack doubles as an automatic on/off switch when earphones are inserted or removed.

Self tuning
Up to 100 hours battery life
Stereo or mono headsets
Simple to use, reliable, and affordable
Rugged and durable design
Audio Output Headset output 200 mW average (impedance as low as 16 ohm)
Connector Stereo/mono 3.5 mm audio output connector and charging input
2.5 mm stereo connector for I/O data programming.
Indicator Lights Multi-function LED (channel-seeking, received signal, no signal, low battery, power, battery status, R.F. signal on/off)
Controls Volume control (50 dB range)
Automatic on/off when headphone plugged in/unplugged
One-button tuning control (AST)
Audio Frequency Response 100 Hz to 10 kHz ±3 dB
Operating Radio Frequency 72 to 76 MHz
Frequency Stability 0.002% frequency synthesized crystal controlled
RF Sensitivity 1.3 μV for 38 dB SINAD
Ultimate Quieting Better than 75 dB
Deviation Acceptance Up to 10 kHz
FM Non-Companded FM Deviation up to 40 kHz
Antenna Integral with headphone cable
Battery Life 100 hours with alkaline batteries
Power Requirements 2 AA batteries
FCC Compliance Complies with Part 15 of FCC rules for scanning receivers
Dimensions 1.06 x 2.5 x 3.25" (2.7 x 5.7 x 8.26 cm)
Comtek PR-75a AutoSmart-Tuning Receiver
  • 1-Year Limited Warranty