Hearing devices for Personal Listening, TV Listening, FM Listening, IR Listening, Church Hearing, Tour Guides, Translation and more

• Superior Audio Quality - 80 dB (70 dB with 863 MHz) signal-to-noise ratio, setting the industry's sound quality standard.
• A choice between 57 channels (17 channels with 863 MHz), complete antenna and accessory options make Listen products ideal for a wide range of applications.
• Programmability - Unneeded channels can be locked so this receiver will access only one or more channels of your choice.
• 100 % Digital - Listen receivers are digitally-tuned so transmission won't drift; assurance that when you select a channel, it stays on the channel.
• Uses standard alkaline or NiMH batteries.
• Built in SmartCharge™ won't allow batteries to overcharge. Charging circuitry is conveniently built into Listen's receivers; never worry about unplugging a transformer at a certain time.
• Transformer charging plug or for the ultimate convenience drop in charging contacts.
• Limited Lifetime Warranty with hassle-free support.

1. An earphone jack (3.5 mm) that accepts either mono or stereo headsets. . Receiver antenna is built into the earphone cord, eliminating additional wires while maximizing receiver effectiveness.
2. Multifunction LED indicates power on, if batteries are low, if the unit is locked on a channel when SEEK is pressed and charging status.
3. Easy on/off volume control.
4. Look&Listen™ LCD Display shows channel selection, channel lock and battery level.
5. Seeks to find best available broadcast. Also, used to adjust squelch in 20 steps which mutes audio on loss of RF signal.
6. When enabled, SQ provides highest audio quality available in its product category. SQ can be disabled for compatibility with other assistive listening equipment.
7. Uses two AA batteries. Selectable to use either alkaline or Listen's advanced NiMH Rechargeable AA Batteries. SmartCharge™ incorporated into receiver makes sure each unit receives the most beneficial charge.
8. Digitally tuned with UP, DOWN, and SEEK buttons behind manually lockable door. Electronically lock on channel by holding the SEEK button down 5 seconds to prevent tampering.
9. Manually lockable battery compartment door.
10. Charging plug port.
11. Contact points for Listen's drop in charging cases.
12. Exclusive belt clip “loop” prevents unit from slipping off belt or strap.

Specification

LR-500-072

LR-500-216

RF Frequency Range

72.025 - 75.950 MHz

216.0125 - 216.9875 MHz

Number of Channels

17 wide band, 40 narrow band

19 wide band, 38 narrow band

Sensitivity

.6uV typical, 1 uV maximum for 12 dB sinad

Frequency Accuracy

± .005% stability 32 to 122º (0 to 50ºC)

Antenna

Uses earphone cable

Squelch

Programmable in 20 steps, automatic on loss of RF signal

Compliance

FCC Part 15, Industry Canada

FCC Part 90, Industry Canada

Audio

** All system specifications are wireless end-to-end

System Frequency Response

50 Hz - 15 kHz (±3dB) 72 MHz

50 - 10 kHz (±3dB) 216 MHz

System Signal to Noise Ratio

SQ enabled: 80dB; SQ disabled 60dB

System Distortion

<2% total harmonic distortion (THD) at 80% deviation

Output

3.5mm connectors, unbalanced, 0dBu nominal output level, 16mW maximum, impedance 32 Ohms

Controls

User Controls

Channel up/down, SEEK, volume

Set-up Controls (battery compartment)

Alkaline/NiMH batteries, SQ enable/disable

Programming

Channel lock, squelch, Channel Lock Out

Indicators

LED

Red, illuminated when unit is on. Flashes when batteries are low, or to indicate charging. Flashes when locked and SEEK is pushed.

Display

Channel Designation, lock status, signal strength indication, Programming

Power

Battery Type

Two AA batteries, alkaline or NiMH

Battery Life (Listen batteries)

30 hours alkaline (LA-361), 15 hours NiMH rechargeable (LA-362)

Battery Charging (NIMH only)

Fully automatic, 13 hours

Power Supply

I/P 120VAC; O/P 7.5VDC 250 mA; Drop in contact points for use with charging cases. Power supply not included (LA-202)

Power Supply Connector

2.3mm OD by 0.7mm ID, barrel type connector 7.5 VDC, center positive <250mA. Drop in contact points for use with Listen charging cases

Power Supply Compliance

RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB compliant

Physical

Dimensions (H x W x D)

3.00 x 1.00 x 5.00 in. (7.6 x 2.5 x 13.0 cm)

Color

Dark Grey with white silk screening

Unit Weight

3.9 oz (111g)

Unit Weight with batteries

5.8 oz (164g)

Shipping Weight

1.0 lbs. (0.45kg)

Door

Manually Lockable. Up, down, and power buttons through door. Other controls behind door (see controls)

Environmental

Temperature - Operation

14 to 104º F (-10 to 40º C)

Temperature - Storage

-4 to 122° F (-20 to 50° C)

Humidity

0 to 95% relative humidity, non-condensing

Specifications are subject to change without notification

FAQs

Q. What is the difference between the LR-400 and the LR-500?
A. The LR-500 gives the user an opportunity to lockout unused channels.

Q. Can the LR-500 be used with multiple transmitters?
A. Yes. We recommend the LR-500 for use with multiple transmitters. The LR-500 is programmable and can be set to just those channels you need.

Q. How many channels can I program into the LR-500?
A. 1 to 57 (17 channels with 863 MHz). The receiver has 57 (17 channels with 863 MHz) channels and you can program it to have just the channels you want to access. It can be a two channel receiver, a 12 channel receiver, or keep all channels.

Q. How many receivers can I have in a system?
A. As many as you need, the number is endless.

Q. What is the function of SQ?
A. To reduce noise of its systems, Listen now offers a noise reduction technology called ListenSQ™ (on 72 MHz and 216 MHZ only). Both the transmitter and receiver must have SQ on to achieve the desired results. If you are planning to use this product with older Listen systems or equipment not manufactured by Listen, you should disable SQ.

Q. What is the warranty of Listen receivers?
A. Limited lifetime warranty. The following cases will void the warranty:
• Misuse, dropping, or any other noticeable cosmetic damage
• Charging alkaline batteries instead of NiMH
• Overheating the charging process by closing the lid on the charging case

Q. How long do the batteries last on the LR-500 receiver?
A. Alkaline batteries last 30 hours. NiMH rechargeable batteries last 15 hours (72 MHz and 216 MHz). With 863 MHz, Alkaline batteries last 20 hours and NiMH rechargeable batteries last 10 hours.

LR-500 Datasheet
Portable FM Brochure