TUNAI Firefly Bluetooth Receiver: World’s Smallest Wireless Audio Bluetooth 5.0 Adapter with 3.5mm AUX for Car/Home Stereo Music Streaming; Auto On, No Charging Needed - Car Kit (Grey)

This is fast connecting, easy to use, and is LOUD! The radio set to 10 can rattle my windows. On my older bluetooth adapter it needed to be at 15-20 and it only goes to 25.... the sound is crisp and clear. And NO "Battery low, Charge soon" warning. (So sick of hearing that). All in all I still think is is a bit pricey, but Definitely worth it. Also the red light it emits is dull and not glaring, so it is good for driving at night.

FREAKING AWESOME. This little device is amazing. sets up in seconds and is ready to pair with whatever source device you have. iphones, androids, mp3 players, computers, laptops, tablets, etc. etc etc. if you have a radio, car audio, home audio, motorcycle audio system and it does not have blutooth and you wanna play your jams from your other device through that system, this is the real deal. small, compact, simple device that you can tote from place to place. simply plug the 3.5mm connector into an AUX input on anything, plug the other end into a usb port for power and presto, zippo, wham, you are jamming to your playlists. will sync up with two different phones and will remember 8 diff paired devices. sound is excellent, build quality is excellent. Comes with a 3.5mm to 3.5mm extention if your usb is further away, (about 3 foot but if you need it you can get longer extentions. can be in the glovebox, console or back seat and will still work great. select the AUX input on your stereo system and listen to your pandora, iheart, amazon prime, etc. LOVE THIS THING. I use it in my truck and on my Motorcycle. Flawless

Usage: Add Bluetooth *MUSIC* to my car stereo., but *NOT* phone I have a 2006 BMW 325i sedan, in great shape inside and out and mechanically. . .but. . .it only supports Bluetooth phone, not Bluetooth music. The Bluetooth phone works fine in the car, so I specifically looked for a BT receiver that did *NOT* have a mic, I want to use the car buluetooth for phone. The reason I chose this specific BT receiver over the many others in the market place, is it's foot print. You just plug one end into USB power, and the other end into your aux input. EZ and unobtrusive!. If your aux input and USB power are not that close together, it comes with a very nice quality aux audio extension cord, even with the base model. With the BMW, the aux input and the power supply are both inside the armrest console, and less than 1 inch apart. So I just needed the simple little 3 inch cable, it works brilliantly inside the console, and nobody even knows it's there. Any passenger would think the phone is streaming directly with the stereo, and would never know this extra device exists. It does have a cool light when it's active, so if it was visible in your vehicle, it's kind of cool, and definitely not bulky or huge eye sore. It was easy to pair with my phone, and it streams music nicely until you get a phone call. At which time the bluetooth transfers smoothly to the car bluetooth. NICE!!!

High quality audio used for my vehicle. On iPhone I have to turn it down 2 clicks or it distorts a lot.

Love it. The bluetooth that came in my car is cumbersome to use. I bought the bluetooth where you charge up this bluetooth module, plug an auxiliary cord on the module then your aux plug. Press a button and the bluetooth module turns on and then you connect. It worked really good. You just had to remember to keep it charged. After my last one was stolen I went to Amazon for a replacement. Saw this and despite it being more expensive then the previous one, I liked how it worked. Plug one end into your USB and the other end into you AUX. Mine are right next to each other and out of sight. Looks like a winner to me. Made the purchase, plugged it in and it's as easy as getting in the car. Start the car and instant connection to my phone. As soon as the device recognizes your bluetooth signal from your phone it pairs immediately. No charging of module's. The 45 second routine of getting in the car. Starting the car, turning on the bluetooth module then pairing with my phone days are over with this guy. Money well spent. Just make sure your car has an AUX cord port. Some newer cars and all older cars do not have that feature.

I bought this bluetooth adapter hoping that this would allow my phone to connect automatically without having to fiddle with anything. While this does work sometimes, other times the bluetooth refuses to play any music, forcing me to unplug and replug the adapter. Very annoying to have to do this several times a day. In addition, I have discovered that this does not handle heat very well. I live in the Pacific Northwest, where summers don't get too hot; however, this thing would constantly sputter out and temporarily die, leaving it not working until it cools down again. I do not think this bodes well over the long term. And finally, after a few months of use, the red plastic casing on the USB slipped off, showing the insides and looking ugly. It still works, but overall I am no longer confident in the quality of this product.

EDIT: I updated from 1 star to 5 stars after getting a replacement unit. The original one had a ground-loop issue so I followed the guidance in the Q&A section and reached out to the seller. They sent me a replacement unit that works perfectly! I'm so happy I reached out and was impressed by their customer service. Original Review: Set up is Easy and Autoconnection works with the last phone it was connected to, but.... This thing has a bad Ground Loop but only when you aren't playing audio through it. So until you press "play" on your phone, you hear the buzz of the throttle, ignition, turn signals, etc. Once you hit play, you're all good. The audio is more than adequate for a car. It's just that whine you hear while you're getting situated! It's so tedious. I've tried different usb power supplies and the issues persists.

I have purchased a few of these types of devices because my car doesn't have blue tooth - each has it's own quarks that sends me back looking for a better solution. Based on other reviews, I'm not having the same experiences as others... When I power my car, the device doesn't turn on automatically. I have to turn the car on, then Unplug the power adapter that it's plugged into (usb adapter for the cig lighter), plug it back in, then the thing lights up and connects to my phone (shows "connected" in BT settings). But, when I play music the sound comes from my phone. So in addition to having to manually unplug/replug the device upon starting my car, I then have to wait for it to "Connect" to my phone, so that I can go into the Bluetooth settings and tell it to Disconnect, then touch the Tunai to Connect to it again. After a few moments the sound will come from my car speakers. That's a mess...and dumb. Really dumb. So I have a feeling the problem is with the device. If it worked the way other reviewers said, I would give it 5 stars - how it's supposed to perform is the exact solution I'm looking for. But the device I received doesn't do what the product description says. On a side note, I'm a professional Sr. IT analyst whose specialty is mobile technology, so I have 20 years of IT experience with the last 10 yrs supporting mobile technology, bluetooth, etc. I think the product I received may be faulty. But, if that doesn't speak to the functionality of the device in general, it certainly speaks to the quality of the product. Take this review for what it's worth. Completely possible it was just a fluke and a faulty unit.

Really good, no ground loop issue. Could be a bit cheaper. Nice part is that it pairs when turning the car on, not like others

Produit assez bien conçu. Qualité du son au rendez-vous et connectivité facile mais par contre l’appareil a quelques fois du mal à se connecter directement lorsque le Bluetooth est activé. Il est par ailleurs nécessaire d’avoir la prise Jack non loin de la prise USB car le fils n’est pas assez long mais mais cela permet d’avoir un fils qui ne traîne pas dans toute la voiture.

Me funciona muy bien,empareja facil y las llamadas siguen entrando por el bluethoot del coche.

It was a greate piece of kit to be used in a car. I bought it to put in my car to connect my phone to the car speaker via Bluetooth. It works great with a few minor issues (very slow in connecting to my phone, sometimes does not automatically connect to my phone etc) but apart from those the device works great with very good sound quality. However after a year of using the device starts to play up, connection was lost or broken while i was playing music so i had to switch it off and turned it back on again, and when i turned back on and tried to connect to the device it wont recognise it and said the device was turned off. So 2 stars off for those issues Update: the seller contacted me and offered a new one as it seems the old one was defective or the firmware issue. The new device arrived after a few days and wow, i could see much better than the previous one. It connects to my phone nearly immediately and automatically after I turn my car on, sound quality is still excellent and no lag or disconnect during music playing anymore. Very happy now and definitely recommend to anyone to want to have a Bluetooth kit to listen to music in the car

Ich habe den Adapter gekauft, da die direkte Verbundung vom Handy mit AUX zu leise war. Ich muss sagen meine Erwartungen wurden sogar noch übertroffen. Eingesteckt, verbunden und los ging es. Tolle Klangqualität, Keine Verbindungsabbrüche, und gute Lautstärke. Störgeräusche wie wenn man das Handy direkt angeschlossen hat (abhängig von der Motordrehtzahl) sind gar nicht wahrnehmbar. Außerdem kein Kabelsalat. Bei mir ist USB und AUX direkt nebeneinander gelegen. Klare Empfehlung.