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Listen Tech LT-700 Portable Display RF Transmitter
Part # LT-700-072
Model # LT-700

The Listen Tech LT-700 Portable Display RF Transmitter is used to wirelessly broadcast audio for a variety of portable applications. Whether its voice or music, you can broadcast your audio to everyone in the audience without having to carry a microphone or be plugged into a wall.

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Description

Details

The LT-700 Portable Display RF Transmitter is used to wirelessly broadcast audio for a variety of portable applications. Whether its voice or music, you can broadcast your audio to everyone in the audience without having to carry a microphone or be plugged into a wall. The LT-700 is excellent for factory tours, outdoor events, wireless microphone applications, classrooms, training, or personal use - anywhere you need to amplify sound, but don't have (or want) an installed system. With the many features of the LT-700, portable transmission has never been easier for users!

This product is approved by the FCC for use in the US. Please note that they cannot be used in all countries. Check with your local government or specific regulation with regard to broadcast frequency in your specific country. Note: FCC rules limit the use of this product to assistive listening.

Features

Features

  • Superior Audio Quality - 80 dB signal-to-noise ratio, setting the industry's sound quality standard
  • A choice between 57 channels, complete antenna and accessory options make Listen products ideal for a wide range of applications
  • Look & Listen™ LCD shows channel, battery status, and programming information
  • 100 % Digital - Listen receivers are digitally-tuned so transmission won't drift; assurance that when you select a channel, it stays on the channel
  • Transmit up to six channels simultaneously on 72 MHz
  • Uses standard alkaline or NiMH batteries
  • Transformer charging plug or drop in charging contacts
  • Built in SmartCharge won't allow batteries to overcharge. Charging circuitry is conveniently built into Listen's LT-700 Transmitter; never worry about unplugging a transformer at a certain time
  • Mute switch
  • Mic and/or line level inputs
  • Limited Lifetime Warranty with hassle-free support
Specification
RF
RF Frequency Range72.025 - 75.975 MHz
Number of Channels57 (17 wide, 40 narrow)
Frequency Accuracy±.005% stability 32 to 122° F (0 to 50°C)
Transmitter Stability50 PPM
Transmission RangeFrom 0 to 150 ft. (45.7 m)
Output PowerLess than 10mW
AntennaMicrophone cable
Antenna Connector0.14" (3.5 mm) connector
Audio
Frequency Response50 Hz - 15 kHz (±3 dB)
Signal to Noise RatioSQ enabled: 80dB; SQ disabled 60dB
Distortion<2% total harmonic distortion (THD) at 80% deviation
Microphone & Line InputUnbalanced, ring of 3.5mm connector, (-10dB nom. input level adjust., +4dBu max, impedance 10k Ohms)
Microphone SensitivityThree position switch: high, middle and low; 6dB increments
Controls
User ControlsPower, mute, channel UP/DOWN, Mic sensitivity, NiMH/alkaline battery, SQ enable/disable
Indicators
LEDRed, illuminated when unit is on. Flashes when batteries are low, or when charging & when muted
LCD DisplayChannel Designation, lock status, signal strength indication, battery life, RF Power
Power
Battery TypeTwo AA batteries, alkaline or NiMH
Battery Life20 hours alkaline (LA-361), 10 hours NiMH rechargeable (LA-362)
Environmental
Temperature - Operation14 to 104° F (-10 to 40°C)
Temperature - Storage-4 to 122° F (-20 to 50°C)
Humidity0 to 95% relative humidity, non-condensing
Physical
DoorManually lockable, controls accessible through doors
Dimensions (H x W x D)5" (127 mm) x 3" (76 mm) x 1" (25 mm)
Unit Weight0.24 lbs (0.11 kg)
Unit Weight with Batteries0.36 lbs (0.16 kg)
Shipping Weight1 lbs (0.45 kg)
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