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Review Summary
Accidents happen where life happens. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failure, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for purchase Internationally or in U.S. Territories.
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50 - 10 kHz ( +/-3 dB)
SQ enabled: 80 dB; SQ disabled 60 dB
< 2% total harmonic distortion (THD) at 80% deviation
Unbalanced, tip of 3.5 mm connector, -45 dBu nominal input level, -30 dBu maximum, impedance 20k Ohms
Three position switch: high, middle, and low; 6db increments
5VDC Bias
Unbalanced, ring of 3.5mm connector, -10dbu nominal input level, -3dbu maximum, impedance 10K ohms
Power, mute, channel UP/DOWN, Mic sensitivity, NiMH/alkaline battery, SQ enable/disable
Channel Lock out,Channel lock
Channel Designation, lock status, signal strength indication, battery life, RF Power
Red, illuminated when unit is on. Flashes when batteries are low, or to indicate charging. Flashes when muted
216.0125 - 216.9875 MHz
19 wide band, 38 narrow band
+/- .005% stability 32 to 122 Degree (0 to 50 Degree C)
Microphone cable
50 PPM
From 0 to 150 ft. (45.7 m)
3.5 mm connector
Less than 100mW
3
I/P 120VAC; O/P 7.5VDC 250 mA; Drop in contact points for use with charging cases. Power supply not included (LA-208)
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
Two AA batteries, alkaline or NiMH
15 hours alkaline (LA-361), 15 hours NiMH rechargeable (LA-362)
Fully automatic, 13 hours
RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB compliant
14 Degree F (-10 Degree C) to +104 Degree F (40 Degree C)
-4 Degree F (-20 Degree C) to +122 Degree F (50 Degree C)
0 to 95% relative humidity, non-condensing
RoHS
FCC Part 15, Industry Canada
Manually lockable, controls accessible through doors
Dark Gray with white silk screening
LA-208, LA-277, LR-100-216, LR-400-216, LR-500-216, LR-5200-216-P1, LR-5200-216, LR-4200-216-P1, LR-4200-216, LP-40-216, LP-41-216, LP-50-216, LP-51-216
3 x 5 x 1" (7.6 x 13 x 2.5cm)
3.9 oz (111g)
With Batteries: 5.8 oz (164g)
The Listen LT-700 Portable 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!
Architectural Specs
The portable RF display 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.