- Description
Details
The Listen Tech LS-14 120-Person Portable RF System is great for organizations that need to accommodate large groups for tours or language interpretation. This system is ideal for conferences, site-seeing tours and language interpretation as well. The 120-Person System includes a portable transmitter and microphone, display receivers with ear speakers, batteries and a carrying case. Also be sure to consider whether a hand held or noise canceling microphone might be appropriate for your application. You can add any number of receivers to a single transmitter if you need to accommodate more guests. Use this system for auditory assistance and language interpretation on tours, for events or in other venues. Great for conferences, manufacturers, museums, governments, houses of worship, tour companies, busing companies, zoos, and board rooms.
These products are 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
- Ideal for conducting simultaneous tours both indoors and outdoors and for offering language interpretation
- Superior Audio Quality - 80 dB signal-to-noise ratio, setting the industry's sound quality standard
- Minimal interruptions to others not on the tour
- Easy to use and manage inventory
- A choice between 57 channels
- Look & Listen LCD shows channel, battery status, and programming information
- 100 % Digital - Listen receivers are digitally-tuned so transmission won't drift
- Uses standard alkaline or NiMH batteries
- Built in SmartCharge won't allow batteries to over charge
- Limited Lifetime Warranty with hassle-free support
- Specification
LT-700 Portable Transmitter Frequency 72 MHz or 216 MHz RF Frequency Range (72 MHz) 72.025 - 75.975 MHz RF Frequency Range (216 MHz) 216.025 - 216.987 MHz Number of Channels (72 MHz) 57 (17 wide, 40 narrow) Number of Channels (216 MHz) 57 (19 wide, 38 narrow) Sensitivity (72 MHz / 216 MHz) .6uV typical, 1 uV maximum for 12dB SINAD Frequency Accuracy (72 MHz / 216 MHz) ±.005% stability 32 to 122° F (0 to 50°C) Transmitter Stability (72 MHz / 216 MHz) 50 PPM Transmission Range From 0 to 50 ft. (15.2 m) to 150 ft. (45.7 m) Output Power (72 MHz) Less than 10mW Output Power (216 MHz) Less than 100mW Antenna (72 MHz / 216 MHz) Uses microphone cable Antenna Connector 3.5 mm connector Audio System Frequency Response (72 MHz) 63 Hz - 15 kHz (± 3dB) System Frequency Response (216 MHz) 63 Hz - 10 kHz (±3dB) System Signal to Noise Ratio (A-weighted) (72 MHz) SQ enabled: 80dB; SQ disabled 60dB System Signal to Noise Ratio (A-weighted) (216 MHz) SQ enabled: 80dB; SQ disabled 50dB System Distortion (72 MHz / 216 MHz) <2% total harmonic distortion (THD) at 80% deviation Microphone Input (72 MHz / 216 MHz) Unbalanced, tip of 3.5 mm connector, (55 dBu nominal, -32dBu maximum, impedance 21 Ohms) Microphone Sensitivity (72 MHz / 216 MHz) Three position switch: high, middle and low; 6dB increments Line Input (72 MHz / 216 MHz) Unbalanced,ring of 3.5mm connector,(-10dB nominal input level adjustable, +4dBumax,impedance 10kohms Controls (72 MHz / 216 MHz) Set-up Controls, behind the door Mic sensitivity, NiMH/alkaline battery, SQ enable/disable User Controls Power, mute, channel UP and DOWN Indicators (72 MHz / 216 MHz) LED Red, illuminates when unit is on. Flashes when batteries are low or to indicate charging LCD Display Channel, lock status, programming Power (72 MHz / 216 MHz) Battery Type Two AA batteries, alkaline or NiMH Battery Life (Listen batteries) 15 hours alkaline (LA-361), 8 hours NiMH rechargeable (LA-362) Environmental (72 MHz / 216 MHz) Temperature - Operation 14 to 104° F (-10 to 40°C) Temperature - Storage -4 to 122° F (-20 to 50°C) Humidity 0 to 95% relative humidity, non-condensing Physical (72 MHz / 216 MHz) Specifications Dimensions (H x W x D) 4.25" (130 mm) x 3" (76 mm) x 1" (25 mm) Unit Weight 3.9 oz. (111 gm) Unit Weight with Batteries 5.8 oz. (164.4 gm) Shipping Weight 1.0 lbs (0.45 kg) LR-400 Display Receiver RF RF Frequency Range (72 MHz) 72.025 - 75.950 MHz RF Frequency Range (216 MHz) 216.025 - 216.975 MHz Number of Channels (72 MHz) 57 (17 wide, 40 narrow) Number of Channels (216 MHz) 57 (19 wide, 38 narrow) Sensitivity(72 MHz / 216 MHz) .6uV typical, 1 uV maximum for 12dB SINAD Frequency Accuracy (72 MHz / 216 MHz) ± .005% stability 0° to 50°C (32° to 122° F) Antenna (72 MHz / 216 MHz) Uses earphone cable Antenna Connector (72 MHz / 216 MHz) 3.5 mm connector Squelch (72 MHz / 216 MHz) Programmable in 20 steps Audio System Frequency Response (72 MHz) 63 Hz - 15 kHz (±3 dB) System Frequency Response (216 MHz) 63 Hz - 10 kHz (±3 dB) System Signal to Noise Ratio (A-weighted) (72 MHz) SQ enabled: 80dB; SQ disabled 60dB System Signal to Noise Ratio (A-weighted) (216 MHz) SQ enabled: 80dB; SQ disabled 50dB System Distortion (72 MHz / 216 MHz) <2% total harmonic distortion (THD) at 80% deviation Output (72 MHz / 216 MHz) 3.5mm connectors, unbalanced, 0dBu nominal output level, 16mW maximum, impedance 32 Ohms Controls (72 MHz / 216 MHz) Set Up Controls Alkaline/NiMH batteries and SQ enable/disable and programmable squelch setting User Controls Volume, CH UP/DOWN,SEEK(All controls except vol are electronically lockable and are behind the door) Indicators (72 MHz / 216 MHz) LCD Display Indicates channel, RF signal strength, lock status, and squelch setting Power (72 MHz / 216 MHz) 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, 14 hours Physical (72 MHz / 216 MHz) Dimensions (H x W x D) 4.25" (130 mm) x 3" (76 mm) x 1" (25 mm) Unit Weight 3.9 oz. (111 g) Unit Weight with Batteries 5.8 oz. (164.4 g) Shipping Weight 1.0 lbs (453.6 kg) LA-278 Behind-the-Head Microphone Frequency Response 300 Hz - 10 KHz Impedance 1 K ohms Connectors 3.5 mm mono Phantom Power 3 VDC Weight 2 oz. (59 g) Cable Length 55 in. (1.4 m) LA-164 Ear Speaker Impedance 32 ohm Maximum Input 130 mW Connector 3.5 mm mono Weight 4 oz. (113 g) Cable Length 36 in. (92 cm) - System Includes
System Includes
(1) LT-700-072 Portable FM Display Transmitters
(1) LA-278 Behind-the-Head Microphones
(120) LR-400-072 Portable Display FM Receivers
(120) LA-164 Ear Speakers
(8) LA-311-01 16-Unit Portable FM Product Charging/Carrying Cases
(121) LA-361 High Capacity AA Alkaline Batteries- Reviews
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