UGREEN 5.4 Aux Bluetooth Adapter, Noise Cancelling 3.5mm AUX Bluetooth Car Adapter, Wireless Audio Receiver for Home Stereo/Wired Speaker, 15H Battery Life

Works great, easy to pair, has great range, and sounds great! Stays charged for a VERY long time (many hours). I don't know just how many, because I haven't run it completely out yet. I use it for parties where we need music running, so I've run it for 4-5 hours straight with no problems. Hooked up to an amplifier, and there wasn't any connection noise, etc. — just great sounding music!

This adapter is great for older cars or speakers without Bluetooth. It paired quickly and the sound quality is solid. I use it with my phone for music in the car and it works flawlessly. Battery life is good. Great value for the price.

Very easy to use and it has a great battery

I finally have Bluetooth in my 2014 Mazda CX-5! I just wanted to be able to play audiobooks and music from my phone without having to connect a thousand cables first, and for that this thing is spot on.Pairing this adapter with my Moto Stylus 5G (with Android 12) was easy, and now it automatically connects every time I get in my car. I also had no trouble connecting the adapter to the car itself; the center console storage ... box?... thingy?... has the aux port - a standard headphone jack - and a usb port, so I just leave the thing plugged in in my center console all the time.I have not tried making a call with it nor have I done anything else with the microphone so I can't rate those features yet. However, for being able to play audiobooks and music from my phone via Bluetooth, this does exactly what I wanted.And, fwiw, I have not noticed any sound distortion with spoken word or music (although the stock radio in the Mazda isn't great to begin with, so who knows).My only beef with this adapter is that you can't turn it off. This is annoying and potentially problematic. For one, the range is really high and I keep finding that it remains connected to my phone even once I'm inside and upstairs, with my audiobook or podcast playing without me realizing it. Sure I could unplug the USB cable, but the battery holds a charge for a few hours so that doesn't solve the problem. Plus, I don't want to have to fiddle with cables the next time I get into my car.My biggest concern, however, is that if it's always on, then it's always pulling a little bit from the car battery even when the car is turned off. I doubt that the draw is enough to significantly impact the battery in the short term, but what if I go out of town for a few weeks and forget to unplug the adapter from the car before I go?That said, I'm still happy with this little adapter. It does exactly what I wanted it to do, it was very easy to set up, and it doesn't negatively impact audio quality, at least for me. I just wish I could turn it off.

I normally don't write reviews , but this product is great. I am mainly using it for streaming audio from a phone to a car stereo. From past experiences I was doubtful that it would sound as good a direct wired connection. It matches the quality of a cable connection. No hissing or poor audio frequencies on the high frequencies and in the bass range. Says the specs are 20 - 20k. It IS !!! And it has auto shutoff after 5 minutes when the phone loses connection when one leaves the car. I just leave it connected to charge while the car is on and since the power jack of the car turns off when the key is off it stops charging. On voice prompts or annoying beeping, NO beeping and the ONLY voice prompts I heard is "power on" and "power off". And the volume of the lady talking is low and NOT annoying. Quality made and the price is great.

This is great. Of course I would prefer if my phone had an aux port or my car had a more modern stereo, but this does what it's supposed too. Got my phone connected to my old 2000's stereo via bluetooth lol.

Great digital product for speaker that have aux and not bluetooth this item will turn your speaker into a bluetooth wireless speaker as long as it take an aux entry work fast easy to syc like it alot

Works great with my 2008 crv, i usually dont worry about the battery because its constantly connected. Setup was super simpe and it was very responsive connecting to my phone.