Listen Technologies LR-4200-216 Intelligent DSP RF Receiver

The LR-4200-216 receiver from Listen Technologies offers outstanding audio clarity and quality with the best range and reception available for the 216 MHz band.

The LR-4200-216 is the smallest device of its kind, resulting in a compact unit that won’t burden the end user. Part of our Intelligent Digital Signal Processing (iDSP) line, is features an integrated neck loop/lanyard that is easy to wear, and the DSP loop driver offers an improved listening experience for anyone with a T-coil-equipped hearing aid. Dual 3.5mm output jacks also allow receivers to be shared between users.

Each receiver is also equipped with a micro USB connection, making it easy for venues to charge and update the units with free iDSP software via any standard USB port.

Extended speaking sessions, presentations and more can be challenging for other devices, but the LR-4200-216 incorporates advanced Lithium-ion rechargeable batteries that offer long life and reliable power. Charge status, along with channel information and volume level, are easy to read on the integrated OLED display.

From lecture halls to conferences, classrooms and more, the LR-4200-216 is an outstanding receiver choice for any venue looking to offer convenient, reliable assistive listening.

Listen Technologies LR-4200-216 Features

• High performance RF receiver offering best-in-class sensitivity and 20dB less noise than other devices
• Integrated neck loop/lanyard with DSP loop driver for an enhanced T-coil listening experience
• Smallest device of its kind makes it easier to wear and use and for venues to dispense, store and maintain
• OLED display showing channels, battery status, channel status, volume level, and more
• Lanyard and belt clip options offer convenient and discreet choices for the end user
• Advanced rechargeable battery technology eliminates the costs and hassles associated with frequent battery replacement
• Designed for single-channel applications

• LR-4200-216 Intelligent DSP RF Receiver(216 MHz)1
• Quick Start Guide1
• Non-propriety field replaceable Lithium-ion battery1

• Audio
  • System Distortion: < 2% total harmonic distortion (THD) at 80% deviation
  • Output/s: Two (2) 3.5 mm (0.14 in.) connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm
  • System Frequency Response: 50 Hz - 15 kHz (±3 dB)
  • System Signal to Noise Ratio: SQ enabled 70 dB, SQ disabled 50 dB
• Controls
  • User Controls: Power, up/down volume
  • Programming: Via software and USB port
  • Set-up Controls: Press and hold up/down volume buttons for 5 seconds to enter channel adjust, use up/down to select channel
• Indicators
  • LEDs: White, illuminated when unit is on, flashes when batteries are low or to indicate charging, solid when fully charged
  • Display: Channel designation, battery level, unit number, charging status
• RF
  • Frequency Range: 216.0125 - 216.9875 MHz
  • Number of Channels: 19 wide band, 38 narrow band
  • Sensitivity: .6uV typical, 1 uV maximum for 12 dB sinad
  • Frequency Accuracy: ± .005% stability 32 to 122 ºF (0 to 50 ºC)
  • Squelch: Programmable in 20 steps, automatic on loss of RF signal
  • Antenna Type: Uses ear phone/neck loop lanyard and short ear phone cable or standard earphone cable
• Power
  • Power Supply: Micro USB connector, 5 V, 500 mA
  • Battery Type: Lithium-ion
  • Battery Life: 8 Hours of continuous use
  • Battery Charging: Time Fully charged in 2 Hours
• Physical
  • Color: Dark Grey
  • Unit Weight with Batteries: 2.4 oz (68.1 g)
  • Shipping Weight: 3.2 oz (90.8 g) with 16 oz (454 g) minimum
  • Dimensions (H x W x D): 3.75 x 2 x 0.64 inches (9.6 x 5 x 1.7 cm)
  • Unit Weight: 1.6 oz (45.4 g)
  • Dimensions with Belt Clip: 3.75 x 2 x 0.8 inches (9.6 x 5 x 2.1 cm)
• Environmental
  • Operation Temperature: 14 to 104 ºF (-10 to 40 ºC)
  • Storage Temperature: (-)4 to 122 °F (-20 to 50 °C)
  • Relative Humidity: 0 to 95% relative humidity, non-condensing
• Compliance Standards FCC Part 15, Part 90, Industry Canada, RoHS