5.4 Bluetooth Car Adapter, [Noise Cancellation] Aux Bluetooth Receiver for Car, 3.5mm Wireless Audio Receiver for Music/Hands-Free Call/Home Stereo/Wired Speaker, 20H Battery Life

Easy to connect, works great, excellent battery life, and great buttons. Bad power button placement. Device turns on automatically if plugged in to power which could get annoying.

Absolutely love this little powerhouse! The battery lasts a great deal of usage before I have to charge it, and the audio jack port and USB-C charging port are spaced in such a way that it can play & charge simultaneously with little to no inconvenience. Installation is super-easy- just plug in the audio jack it comes with into your car's audio jack, select this device on your phone's Bluetooth, and start playing music! (Make sure your car audio is on, first, haha!) The light effects are take-it-or-leave it for me; I had been concerned the lights might be distracting while driving at night, but I barely notice them. I appreciate that I can use this little adapter to adjust the volume, so now I can use my phone, car volume, or this, for fine-tuning. And I like that it shows the volume/battery level on the device itself. The only thing I'm still not used to (using it for approx. 8 months) is the time it takes to power on- the last device I had was 3 seconds, and this is 5-5.5 seconds. It doesn't sound like a lot, but apparently it makes a difference to my muscle memory for holding down a power button! Of course, this one is doing a lot more than my last one did. I do also prefer a beep or two compared to this one's "POWER ON" lady, but I have gotten used to that much more quickly than the power on time. Be warned, though- the POWER ON lady will tell you at whatever volume you left it on previously! ...But all in all, I'm very happy with this purchase!

I have a 2007 e350 and it works flawlessly on it. The sound quality is the same as if I was playing through aux, theres no delay, battery lasts a long time and it charges quick. The only thing I dont like is that it flashes when playing music, its a little distracting. Other than that its perfect

Functions as advertised. My only complaint is the annoying pairing voice instead of a beep sound like other bluetooth receivers. No audio quality issues and overall a decent product for the money. Body is made of plastic made to look like metal. Comes with a manual, charger, two way 3.5mm aux and some more documents.

This device has no security at all. Anyone driving or walking by can connect any time. It stays in pairing open mode permanently. Anyone can connect to the microphone in your car and listen while you are driving. Or, they could play something loud and obnoxious. The voice prompts when pairing, disconnecting, powering on, and pretty much doing anything, are loud and obnoxious. There is no way to change or disable this behavior. The bright LEDs blink and flash all the time for no reason except to be a distraction. You can't disable it. Beware of the large number of reviews which mention that the device won't work when cold. I didn't have that problem, but I plan on returning the device before that happens. I wish I had seen those reviews before I bought it. It doesn't have any kind of auto-on/off feature. It just stays on all the time, even if nothing is connected to the output port. You would have to manually turn it on and off. If you do turn the device off by holding the power button, it doesn't shut off right away. It stays on for another 2-seconds while it plays the obnoxious "power off" voice prompt. This is confusing if you don't actually have anything plugged into the output port, because it looks like the device isn't turning off. No play/pause button. Overall, this device is more expensive than almost every other adapter on the market but is no better, or is worse.

I bought these to use on the school bus that I drive. They work exactly how they are advertised. It charges quickly, it responds to button presses quickly, Bluetooth connects fast. Overall they are great. I feel that the battery drain is faster than expected. I am getting around 18-20 hours before the hit 0% charge.

Love, love, love this little thing! Easy to connect, one thing I would note is to make sure to turn it off before you leave your car. I forgot a couple times and the battery died fast but my fault for forgetting other than that it has given me hours of battery time before I had to charge it. The bluetooth works perfect for calls. Had to make sure and ask my husband if it sounds muffled or far away when I talk and he said no. 100% recommend!

THE GOOD Unit connects very quickly to both my phones and sound quality I hear is good. Unit turns on and connects automatically when power is applied upon turning on vehicle. Unit switches between playing media on personal phone to taking calls from work phone and back to playing media from personal phone seamlessly. THE NOT SO GOOD Microphone quality is middling; people with whom I speak complain it's difficult to understand me when I call using this unit. THE UGLY Unit will not connect when the temperature is below about 30°F regardless of the battery level. The unit does turn on, however. Warming the unit up in my hands for a few minutes resolves the problem. Emails to manufacturer were responded to promptly but no fix was offered (apart from a refund). Unit was returned. THE RUB If you live in a non-freezing environment and you plan on mostly using this device to listen to media and only occasionally take calls then I recommend it for you. If you live somewhere where it's often freezing and/or you wish to make a lot of phone calls then look elsewhere.

Great little adapter. Works really well. I bought this so I could have handsfree in the car. Good value for money and the battery lasts ages. Was really easy to connect. Not sure about music as I only use it for calls

Super Teil. Ich persönlich höre lieber Radio, auch um auf dem Laufenden zu bleiben. Da meine Kinder aber beide in der Pubertät sind, ist das einfach zu uncool, besonders wenn man noch Klassenkameraden oder Teammitglieder mitnehmen muss. Somit wollte ich günstig aufrüsten und bin relativ schnell bei UGreen hängen geblieben. Es gibt ja verschiedene Modelle aber ich habe mich für das hier entschieden weil die Akkulaufzeit relativ hoch ist und man den aktuellen Akkustand auch am Gerät ablesen kann. Da der 3,5mm Klinkensteckeranschluss sich bei mir im Handschuhfach befindet ist es unpraktisch über den Zigarettenanzünder aufzuladen. Bei 20 Stunden Laufzeit habe ich aber immer genug Zeit den Akku zu Hause zu laden und dann verschwindet das Gerät im Auto einfach im Handschuhfach. Einzig negativ ist das einschalten, wofür man es aus dem Handschuhfach holen muss. Hier wäre mir eine Funktion lieb gewesen, dass ich immer per Bluetooth verbinden kann auch wenn der Empfänger aus ist. Gleichzeitig wäre dann aber auch die Akkulaufzeit logischerweise kürzer, weshalb ich den Kompfort dann auch gerne der längeren Laufzeit opfere. Es ist sowohl ein Verbindungskabel, welche praktisch ist wenn der Anschluss wie bei mir im Handschuhfach ist, enthalten, als auch ein starrer Stecker, falls der Anschluss sich in der Mittelkonsole befindet. Ein Ladekabel ist auch dabei, welches in allen Positionen gut zum Einsatz kommt. Ansonsten kann man ja auch bequem zu Hause Laden, da der Akku wirklich lange hält. Somit kann ich den Empfänger allen einfach nur empfehlen so lange es um das Musikhören geht. Zum telefonieren ist ist der Empfänger im Handschuhfach jedenfalls nicht geeignet, da bei Start eines Gesprächs automatisch auf das Mikrofon im Empfänger geschaltet wird und da wird man dann nicht gehört. Aber wie gesagt, mir ging es ja nur darum, dass die Kinder ihre eigenen Playlists hören können und das funktioniert sehr gut und die Audioqualität ist ebenfalls Prima!

Bien empaquetado, entrega en fecha prevista. Peso contenido, funcionamiento muy correcto, mandos sencillos, volumen de sobra, emparejamiento fácil. Batería aparentemente duradera, en una hora ha bajado solo un cuatro por ciento.

Étonnant et très facile à utiliser j'ai été agréablement surpris lors de la première utilisation

My car has an aux connector but its factory head-unit doesn't support bluetooth. I contemplated for a while whether I should go for one of those transmitters that socket in the auxiliary/cigarette power outlet, a tiny MP3 player or this UGreen transmitter (all found on Amazon). I wanted physical volume and next/previous buttons in order for me to easily control the device and so I could keep my eyes on the road (very important to me). I decided to go for this UGreen transmitter connected by bluetooth to my smartphone and I gotta say I'm not disappointed. The device comes with a double sided sticker so you can mount it to whatever space you like. I did this and it holds pretty firm (see pic1). One thing I really like about mounted it as opposed to not mounting it, is that you can control the buttons blindly. Speaking of buttons, they work good and control the connected bluetooth device, so for example, when you press next/previous, the command is sent to the phone. Same for volume. The power button sends a pause command which is pretty handy. I also like that the device powers down itself when you're not connected anymore. This is pretty convenient so you don't have to power it down manually when you exit the car. The device supports the SBC and AAC codec. Some dislikes: as seen in the spec sheet (pic2), it doesn't support LC3 codec. Also, holding next/previous button doesn't time skip. Note: the device does NOT come with the 90 degree USB socket as seen in pic1.