UGREENAux to Bluetooth 5.3 Adapter 3.5mm Bluetooth Receiver for Car USB 2.0 to 3.5mm Jack Kit with Built-in Microphone Aux Input for Hands-Free Calls Compatible with Car Speaker and Home Audio

By far the best Bluetooth adapter for an aux port that I have ever used! Love that it simply just plugs in and is ready to use! The built in usb port makes it so easy to use as it turns on when the radio is on and there’s no need to charge or power on, it’s just always ready! It works great with fantastic sound quality, it’s durable and has lasted years, and the extra length on the cable makes it the perfect size for any vehicle.

Update (10/30/2023): Samsung to the rescue!So I recently discovered that my Galaxy S20 has a routines feature where you can program the phone to automatically do certain tasks when certain conditions are met. So in this case I was able to use that to automatically play music on Spotify when my phone connects to this bluetooth device. So that basically solved the biggest gripe I had with this product. Even though it was my phone that fixed the issue and not the manufacturer of the device, I am still going to update this review to 5 stars because now I basically have no issues with it. Anyways, feel free to read the original review below.I love this thing! So much better than the previous two bluetooth adapters that I had in my car. I used to have a battery powered aux adapter and a cigarette lighter port powered FM radio adapter. The battery powered one sounded good but was so inconvenient because the battery would constantly die on me during car rides. I could keep it plugged in but then I'd have a cable dangling down from it which was annoying. Also because it had a battery, it was bigger and bulkier than it needed to be, which cluttered up my dashboard for no good reason. The FM adapter was a bit more convenient (no wires!) but it sounded terrible. The sound was tinny and full of static. Almost unusable because of that. And because my car's cigarette lighter is always powered on, even when the car is off, I had to unplug it and plug it back in every-time I used it or else risk killing my car battery. Not a big deal, but annoying enough that it caused me to rarely used it.This one solves basically every problem that my previous two adapters had. For one, it's powered by USB, so I don't have to worry about any batteries dying. Plus, I can power it by plugging it in to my car stereo's USB port which does power on and off with the car, so I don't have worry about plugging in and unplugging every time I get in and out of the car. Also, it has the form factor of basically just a cable, so it take up almost zero room on my dash. Super sleek and discrete!On top of that it connects to the stereo with an aux connection so it sounds fantastic and doesn't have any of that FM radio static. I even noticed that I don't have to crank up the volume on the stereo like I had to with my previous aux adapter. I guess since it was battery powered, it needed to cut back on the output to save battery life.There's one problem with this thing though, something that I feel is big enough to warrant taking off one star. The thing is that this doesn't have any buttons on it. No play, pause, fast forward, rewind, or anything like that. Understandable since it's so small and sleek that there wouldn't be any space on it for that. That's fine. They would have had to make it bigger to fit buttons on it, so I think that was a good call to not include buttons. BUT... one thing that would have made living without buttons so much easier is if it had auto play. It would have allowed me to hop in my car, the adapter would power on with my stereo that's powered on with the engine, the adapter would automatically connect, and the music would play on it's own without any user input. I wouldn't even have to think about it, it would just work.It does have auto-connect which is great, but no auto-play. Meaning I have to pull my phone out of my pocket, open the Spotify app, and hit play. Not a huge deal, but it's the one thing that stops this from being a truly hassle free experience where I don't have to fiddle around with anything to get music from my phone to my car stereo. If they changed that, this would easily be a five star product for me!

This Bluetooth receiver from UGREEN is one of the most flawless products I’ve ever ordered. From the very thoughtful design, the build quality, the sound quality, the stability and the speed of the connection, it is really amazing. Everything just works. The manual even comes with the Bluetooth name already printed so you don’t get confused on set up if you’re a novice. The manual is very easy to follow and the set up is very simple. Anybody used to a dozen Bluetooth devices they already own will be right at home.I am using this device in my car. My car is a 2013 with a very outdated version of Bluetooth. Now my phone connects to my stereo as faster than it can connect to a pair of AirPods. The Bluetooth version 5.3 that comes with this receiver is very low latency also. I can now follow lyrics in real-time, or watch a music video in perfect sync. I even tried playing a video game on my phone with the audio going through my car stereo. Very low latency. If there’s any, it’s hardly noticeable.I am so impressed with this product! I would recommend it to anyone. I’m going to purchase another one just to have on hand for any household scenarios where I may need something like this.Great job UGREEN !!

I used to have a cheaper version that would break apart. This new version claims to be about 90 cm long, which made me worried. However, I realized that it’s coiled up, so it’s actually about 7 inches long.I like this product because it’s simple to connect and use. It plugs in and automatically connects to your last connected device as soon as the car turns on and the device is powered on. The sound and audio quality are also good. The build looks great, and it doesn’t look as cheap as the other versions.One pro and one con about this device is that it has a small microphone in the USB port. This means you can use it to make phone calls using your car speaker or use assistants like Siri. However, when you’re connected to the device, the phone uses the microphone on the USB drive by default. So, you have to speak directly to the USB drive loudly and clearly for it to understand you. If you’re not speaking directly to it, the microphone won’t work well. It might misinterpret your voice or make it sound muffled to the people on the call.Otherwise, if you take this into account, you can have a good time using this device. However, if you make a phone call, you can choose to use your phone’s speaker and mic instead, that’s still an option.It’s a great price for the upgrade to BT.