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Your cart is empty.Product Description
Here's Why You Need to Act NOW!
Long Range FM Transmitter
Broad Compatibility
Feature
Stable Frequency
- Built in micro controller for frequency control and display;
- Transmitter will also broadcast at the same frequency after an unexpected power failure
Stereo Selection
- Frequency transmission will not drift, very stable and clear sound quality;
- Listen to your music and other audio in true stereo format
Volume Control
- The line in volume and the microphone have separate volume controls;
- Turn up the volume on the mic while reducing the volume of the audio with a press of a button.
Blue LCD Display
- LCD display with blue backlight
- The current frequency is clearly shown on the display
- Blue backlight, can also be used in dark night
Specification
- Working voltage: 11~13V DC(Rated voltage 12 v）
- Output impedance: 50Ω
- Harmonic and noise radiation ≤－60dB
- Audio distortion: <0.30%
- Preemphasis delay: 50us
- Degree of separation： ≥40 dB
- Input level: ≤-10 dBV
- SNR(Signal to Noise Ratio): ≥65 dB
- Size: L:113mm;W:88mm;H:39mm
- Weight: 269g
Package includes：
- 1 x TR508 FM Transmitter
- 1 x 100~240V Power Supply
- 1 x 3.5mm Audio Cable
- 1 x English Manual
Widely Used
Use it hundreds of ways and enjoy hours of your favorite audio sources.
BILL D SLACK
2025-09-05 14:08:03
The transmitter runs well, easily received anywhere in my house using low power. Sound is broadcast quality on any receiver. Easy to set up and use. The major problem is the loud hum coming from inside the units case. The hum will lessen if I press a finger to the top or sides, but once I remove it, the hum returns.Amended on Jan 7, 2023: Retekess sent me a replacement transmitter which I received today. It works perfectly, with no hum at all. Very quick customer service, and a promp solution to the problem. I'd order this again if I need to.
DSR WALK
2025-08-01 12:41:38
this transmitter is very well made and very solid. it has a metal body and quality antenna. it is easy to use and transmits a strong FM signal all over my home and yard. the sound is full and strong. it is very easy to use. it does get hot after using more than 2 hours but it worked well ! long live radio ! i also loved the audio cable it came with !
KutWrite
2025-07-30 12:40:35
I took a chance on this unit, since the power switch on my Whole-House FM transmitter became unreliable.I'm glad I bought this one. Note that this is $79, 1/2 the price of the Whole House, yet puts out about 2x the power. I use it on "Low" power, which is 0.5mW. "High" is too powerful and distorts the audio on my nearest receivers.Note that there are other versions of this unit that are about 2x the price (about $150). This $75 unit appears to be exactly the same as the others. There is also a newer version with an extendable whip antenna. I wanted this one for $4 more due to the helical, short antenna which seems of higher quality. The display on this one is brighter than the new one, too.The tiny power button on this one seems flimsy, so I'm leaving the unit on 24/7, even though I only listen to the radio about 8 hours a day.
M. Stavros
2025-07-18 17:30:01
I purchased the transmitter a month ago for home use. I use it to stream on multiple FM radios placed in various rooms in my house. Sound quality was good but what drove me and the family nuts was a background hum. You would hear it very clearly and strongly between songs. The hum would also affect the overall clarity. I tried various levels, Bluetooth devices, direct 3.5 mm connection, ETC with no avail. I did some search and used some try and error RF suppression tricks until I wrapped a foil around the base of the antenna bolted to the box and another foil around the power supply. That took place of at least 90% of the hum. Now the sound is much clearer, crisper and much less annoying as the hum is mostly gone. Wished they had a ferret core or something provided in the box or at least an explanation of that anomaly and it possible fixes in the leaflet. Overall, I recommend this product as a cost effective solution for those who would like to stream in a larger home with multiple devices. (Also a good idea to search for the least used/busy frequencies in your zip code, this helps with avoiding clashing interferences).
Customer
2025-07-07 11:50:06
Moved from Chicago to Boston but still wanted to listen to Chicago radio stations while doing house and yard work with my radio headphones. Worked awesome, streamed via Tune In app from phone to transmitter. That’s the good. The bad is it worked for less than 2 weeks. It won’t turn any on more. Returning. Look elsewhere, this is not reliable.
Glen Stinson
2025-07-03 14:38:24
This is an awesome product for a great price! I connected this to my antenna on the roof and also have it in line 1 watt amplifier and the range is over 2 miles!! I will be looking at getting a bigger amplifier to increase my range.
Greg Zsidisin
2025-02-04 17:34:28
Worked great until a brief reverse polarity was applied for power, when we tried to switch power supplies at an outdoor event. Our club's unit is dead as a doornail now. Kind of amazing that there was no reverse-polarity protection. We'll look for a more robust unit now.UPDATE: The seller very kindly refunded us on this.
Customer
2024-12-22 11:24:46
We have a lightorama light display for Christmas and other holidays, and we use this FM transmitter to transmit the audio. Significant upgrade from what we were using, crystal clear signal and very easy to dial in perfectly. Excellent upgrade for us
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