Impressive, good range and high fidelity.

For the money I'd say it's a great deal. The supplied power supply is a two prong and thus ungrounded supply which I found produced a 60Hz hum in the background of the transmission. I replaced it with a 3 prong 12DC power supply Kastar AC Adapter, Power Supply 12V 6A 72W, Tip size 5.5*2.5mm for LCD Monitor, LCD TV, 5050 3528 5630 LED Strip Light, Tape Light, Rope Light, Wireless Router, ADSL Cats, Security Camerathat solved that problem. The fan is easily 5 times louder and at a much higher pitch than an almost identical 7 Watt unit (RioRand (TM) Upgraded RR7C+ FM Transmitter Mini Radio Stereo Station PLL LCD with Antenna). I must have got a lemon but I'm not going to bother to return it just for a bit of noise - but if that would bother you perhaps this one would be better for you: Signstek 0.5 W 05B Dual Mode Long Range Stereo Broadcast Home FM Transmitter with Antenna and Free Audio Cable*Fashion Black* as it is totally silent - it has no fan. I've used the 7 watt since 2015 with no problems and 6 of the 0.5W units since 2016 also with no problems but this unit was ordered on April 28, 2017 so time will tell - I'll update this review if it dies.

It works. Thus far I have only used it at the low power setting. I drive the transmitter with an older laptop that I have used as a way to push my Google Play Music to a home stereo. The signal quality seems to improve with the quality of the radio used for reception. I have two home stereo systems, and a high-end portable shortwave which covers the FM band. Each radio indicates that I am receiving a strong stereo signal. However, the cheaper the radio, the worse the signal quality seems to me.

I had some difficulty getting the transmitter's signal strength right so my cheap boom box would sound decent. What finally worked was putting the antenna perpendicular to the transmitter's antenna. So, maybe the transmitter unit is overloading the cheap radio's ability to handle a strong signal. So, that is likely not this unit's fault.

Another key to using this device is effectively is to use your own patch cord. The noise went down when I used a higher quality cable. Also, don't overdrive the input. Set your volume level at about 60 to 70%.

The other reviews are correct, the fan is way too loud and sounds like it is coming apart. It is so annoying that I may open this unit up and install a better fan. Additionally, the directions that come with the unit are the bare minimum and take a bit to decipher. They are not the worst Chinenglish I have ever read, but they could be better. The fan and the directions are where this unit lost a star.

I didn't ask for, nor did I receive anything for writing this review.

I once had the Signstek 7C but the audio section burned out because RF was getting into it and the audio section of the transmitter didn't seem to have good enough shielding.. The 5c didn't have that issue even running the transmitter with the telescopic antenna.

Later I bought a magnet mount FM transmitter antenna which was the CA-200 and put it outside and it made my transmitter go at least 2 miles. Actually I need to do some more drive tests to see just how the range does but this transmitter is far better then the 7 watt version because the 7C also had problems with the fan not coming on or making a horrible grinding sound when you first plug that transmitter in.

However the 5c does not have this issue at all. Plus you really don't lose that much range between the two.

So in my opinion you're better off with the 5c for a hobby radio station. If you get a magnet Mount outside antenna and get your SWR tuned in you should have no trouble transmitting to a very small town in a rural area so long as you transmit on a blank frequency and make sure there is a blank frequency above and below your frequency. For example if your frequency is 100.1 then 100.3 and 99.9 also need to be blank so that you don't bleed other radio stations over. This is true with all FM transmitters.

2 things with this Xmitter, 1 the power supply is junk and induces hum replace it with a high quality one.2nd is that it is not very loud compared to other tx units or radio stations. No matter how you try you can never get it loud enough with your input and when you try to go as loud it distorts the bass. looking for a replacement. coverage is ok for my 25 acres however you need to turn up your listening devices.