LT-700 Portable Transmitter

• 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 (6) channels simultaneously on 72 MHz, (3) three on 216 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.

The portable FM transmitter shall be capable of broadcasting on 57 channels. The unit shall incorporate a microphone sensitivity switch. The device shall broadcast on both wide and narrow band channels with a SNR of 80 dB or greater. The device shall have an audio frequency response of 50 Hz to 15 KHz, ±3 dB at 72 MHz, or of 50 Hz to 10 kHz, ±3 dB at 216 MHz. The device will incorporate a mute switch. The battery door shall be capable of being mechanically locked. The device shall incorporate an LCD display that indicates channel, battery level, low battery, battery charging, and RF signal strength. The portable transmitter shall incorporate automatic battery charging circuitry for recharging of NiMH batteries, with the ability to charge via a wall transformer or drop in charging case. The Listen LT-700-072 or LT-700-216 is specified.

1. A microphone or line level source (such as a CD or MP3 player) connects here. Use the LA-263 Line/Microphone “Y” Cable (72 MHz and 216 MHz) to connect an audio device with your microphone. Transmitter antenna is built into the microphone cord, eliminating additional wires while maximizing transmission effectiveness.
2. Multifunction LED indicates when microphone is muted, if batteries are low, and charging status.
3. Easy access mute switch.
4. Look&Listen™ LCD Display shows channel selection, channel lock, and battery level.
5. Offers 57 channels, or can be programmed so that only the channels you are using are displayed.
6. Easy access POWER button.
7. Uses two AA batteries. Adjustable to use either alkaline or NiMH batteries
8. When enabled, SQ technology provides the highest audio quality available in its product category. SQ can be disabled for compatibility with other assistive listening or tour group equipment.
9. Adjustable microphone sensitivity switch for best audio results.
10. UP/DOWN channel selection. Also used to lock and unlock channel selection to prevent accidental channel switching.
11. Manually lockable battery compartment door.
12. Single transformer charging plug port.
13. Contact points for Listen’s drop in charging cases.
14. Exclusive belt clip “loop” prevents unit from slipping off belt or strap.