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Description
Listen Technologies LR-4200-IR Overview
The Listen Technologies Intelligent DSP IR Receiver is for use with the company's infrared assisted listening systems. The unit features two 3.5mm stereo output jacks that can drive two pairs of headphones or a single LA-430 lanyard for T-coil users (both available separately). The result is a convenient listening experience in small-to-medium places where it's difficult to hear�including theaters, boardrooms, classrooms, courtrooms, houses of worship, and more.
The receiver has an OLED display that shows unique channel names, battery status, channel status, volume status, and charge activation. The micro-USB connection is used with the free iDSP software suite for set up, programming, inventory management, firmware updates, and charging via any standard USB port. A field-replaceable, lithium-ion battery is included with the unit that powers it for up to 8 hours.
In the Box
- Listen Technologies Intelligent DSP IR Receiver
- Field-Replaceable Lithium-Ion Battery
Listen Technologies LR-4200-IR Specs
| Frequency Response | 63 Hz to 15 kHz (±3 dB) |
| Signal to Noise Ratio | Mono: >60 dB Stereo: >52 dB |
| Distortion | <2% Total Harmonic Distortion (THD) at 80% Deviation |
| Audio Output Jacks | 2 x 1/8" / 3.5 mm Female, Unbalanced Nominal Output Level: 0 dBu Maximum Output Power: 16 mW Impedance: 32 Ohms Accepts Mono or Stereo Phone Plug |
| User Controls | Power On/Off and Volume Up/Down |
| Set-Up | Press and Hold Up/Down Volume Buttons for 5 Seconds to Enter Channel Adjust, Use Up/Down to Select Channel |
| Programming | Via Software and USB Port |
| LED | Flashes when Batteries Are Low/Charging, Solid when Fully Charged |
| Display | OLED Shows: Channel Designation, Battery Level, Unit Number, Charging Status, Volume Status |
| Carrier Frequency | 2.3 MHz, 2.8 MHz, 3.3 MHz, and 3.8 MHz |
| Number of Channels | 4 x Selectable Channels |
| Frequency Accuracy | ±.005% Stability (32 to 122°F / 0 to 50°C) |
| Modulation | FM Wideband, ±50 kHz Deviation Max, 50 uS De-Emphasis |
| Sensitivity | IR: Better than 1 nW/cm2 @ 40 dB SNR |
| Squelch | IR: Programmable in 20 Steps, Automatic on Loss of IR Signal |
| Power Save Mode | IR: Turns Unit Off After a Specified Time of No IR Signal, Default Is 30 Minutes |
| Battery Type | Lithium-Ion |
| Battery Life | 8 Hours of Typical Use |
| Battery Charging Time | 2.5 Hours |
| Power Supply | Micro-USB Connector, 5 V, 500 mA |
| Operating Temperature | 14 to 104°F / -10 to 40°C |
| Storage Temperature | -4 to 122°F / -20 to 50°C |
| Humidity (Non-condensing) | 0 to 95% Relative Humidity |
| Standards | FCC Part 15, ICS-03, CE, RoHS, WEEE |
| Color | Flat Black |
| Dimensions | Unit: 3.75 x 2 x 0.64" / 9.6 x 5 x 1.7 cm Unit with Belt Clip: 3.75 x 2 x 0.80" / 9.6 x 5 x 2.1 cm |
| Weight | Unit: 1.9 oz / 53.9 g Unit with Batteries: 2.8 oz / 79.4 g |
| Package Weight | 0.22 lb |
| Box Dimensions (LxWxH) | 4.3 x 2.3 x 1.3" |
Listen Technologies LR-4200-IR Reviews
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Bulk Discount
| Quantity | Price |
| 2 | ₹ 35608.3 |
| 3-5 | ₹ 35244.95 |
| 5-10 | ₹ 34518.25 |
| 10+ | ₹ 33791.55 |
Bulk discount will be automatically applied during checkout based on quantity.