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Compact portable RF receiver with front LCD display and channel buttons

Listen Technologies

Listen Technologies LR-500-072 Portable RF Receiver 2 in 1 accessory

SKU CH-DE5W-4KZEX

A portable RF receiver handling 17 wide-band or 40 narrow-band channels with an 80 dB signal-to-noise ratio, LCD status display, and 3.5 mm output for mono or stereo headphones

  • Compact programmable receiver for flexible listening
  • Up to 17 wide-band or 40 narrow-band channels
  • 80 dB signal-to-noise ratio for clear audio
  • SmartCharge prevents overcharging during drop-in charging
  • Works with both mono and stereo headphones

Compact Programmable RF Receiver

The Listen Technologies LR-500-072 is a compact, portable digital receiver designed for assisted listening applications. It delivers an 80 dB signal-to-noise ratio when squelch is enabled and supports up to 17 wide-band or 40 narrow-band channels. Users can select frequencies via front-panel seek controls and monitor status on the built-in LCD display.

LCD Display and SmartCharge Battery System

The easy-to-read LCD shows channel designation, lock status, signal strength, and battery level, allowing quick adjustments without external tools. A built-in SmartCharge feature prevents overcharging during drop-in charging with compatible Listen Technologies cases and plugs, simplifying fleet management for venues that maintain multiple units.

3.5 mm Unbalanced Audio Output Constraints

Audio is delivered through a 3.5 mm unbalanced jack at a nominal 0 dBu level with a maximum output of 16 mW into 32 Ohms impedance. This limits drive capability for high-impedance headphones and makes the receiver unsuitable for users requiring balanced line-level outputs or higher power for large-venue distribution.

Highlights

  • Compact programmable receiver for flexible listening
  • Up to 17 wide-band or 40 narrow-band channels
  • 80 dB signal-to-noise ratio for clear audio
  • SmartCharge prevents overcharging during drop-in charging
  • Works with both mono and stereo headphones

Specifications

No published specifications for this item yet.

Questions about this item

How often will the rechargeable battery need replacing with daily drop-in charging?

The built-in SmartCharge feature prevents overcharging during daily drop-in charging, extending battery lifespan before any replacement is needed.

What limits continuous listening time on a single charge?

Battery level shown on the LCD display is the practical limit; the receiver runs until the indicator shows empty, then requires drop-in charging.

How much heat or fan noise does the unit produce during all-day operation?

The compact portable receiver has no fan and generates negligible heat; only the LCD display and RF circuitry draw power during extended use.

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