






🎧 Upgrade your soundscape, ditch the wires, and never miss a beat!
The KROMEN Bluetooth Aux Adapter transforms any 3.5mm aux input device into a wireless Bluetooth 5.0 receiver with a 33ft range, built-in microphone for hands-free calls, and dual device connectivity. Its compact design and easy plug-and-play setup make it the perfect upgrade for cars, headphones, and home stereo systems, delivering stable, high-quality audio streaming and seamless device switching.






| ASIN | B094VWJQ15 |
| Additional Features | Built-In Microphone, Hands-Free Calls |
| Audio Input | 3.5mm aux input port of a stereo system |
| Audio Output Mode | Stereo |
| Audio Output Type | 3.5mm jack, Bluetooth |
| Battery Type | Rechargeable Lithium-Ion |
| Battery Weight | 1.05 Grams |
| Best Sellers Rank | #47,889 in Electronics ( See Top 100 in Electronics ) #233 in Wireless Audio Receivers & Adapters |
| Bluetooth support? | Yes |
| Brand | KROMEN |
| Color | black |
| Compatibility Options | Bluetooth-enabled devices |
| Compatible Devices | [INF] Smartphones, iPad tablets |
| Connectivity Technology | Wireless |
| Connector Type Used on Cable | 3.5mm aux jack |
| Control Method | Voice |
| Customer Reviews | 4.0 out of 5 stars 4,155 Reviews |
| Hardware Interface | Bluetooth, Bluetooth 5 |
| Includes Remote | No |
| Installation Type | Plug In |
| Item Dimensions L x W x H | 1"L x 1"W x 2"H |
| Item Weight | 0.02 Kilograms |
| Lithium Battery Weight | 0.6 Grams |
| Lithium-Battery Energy Content | 0.15 Watt Hours |
| Manufacturer | KROMEN/Shenzhen Yanglousi Technology Co.,Ltd |
| Model Name | KROMEN |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Number of Channels | 1 |
| Number of Lithium-ion Cells | 1 |
| Number of Ports | 1 |
| Power Source | Battery Powered |
| Product Dimensions | 1"L x 1"W x 2"H |
| Rechargeable Battery Included | Yes |
| Special Feature | Built-In Microphone, Hands-Free Calls |
| Supported Application | Smartphones, iPad tablets, other Bluetooth-enabled devices |
| Supported Media Type | Audio |
| Supported Standards | Bluetooth 5.0 |
| UPC | 761062095464 |
| Unit Count | 1.0 Count |
| Wireless Compability | Bluetooth |
S**Y
Great product, great price!
Works awesome.
N**S
Garbage
I’ve used this on my motorcycle now all of a sudden the damn thing don’t work all it does is flash it won’t let me shut it off and certainly won’t connect to my iPhone to play music. It won’t do a damn thing. I’ve returned it, and received another one that did the same damn thing on December 27, 2025. It crapped out on me again. Guess I’ll be returning this one too.
A**W
Cool little blue tooth Audio for old speakers & systems.
Hooked this to the spare old PC desktop speakers with subwoofer, in a typical 9’x10’ room and the connection was very good, paired with iPhone, don’t have an Android device to be tested with. Audio is lossless, could be it’s within a small room, did not try walking away or outdoor use. Didn’t stay long enough to see how long the built-in battery last, but it’s fairly easy enough with a Micro USB port for charging (not Type-C). Keeping it. Will follow with an update in a few months.
W**L
It boosts the signal so much that it isn’t usable for me.
Someone showed me this product. Thinking it would be perfect for me, I bought two of them. Both of them are so LOUD that I have to turn the volume so low on my iPad (which I’m using to play the music through) that I have no room for volume control. It’s either no sound, barely here it, or WAY TO LOUD. Nothing in between. If I plug a cord into the exact same setup, the volume range is in the middle of the volume range and I can fine tune the volume to my liking. That does not happen with these. Also, one of them is in a foreign language, which previous reviews says that the language can’t be changed. Who sells products in foreign languages to customers in America, unless specifically asked? I tried to ask if there was a way to turn down the volume on the Bluetooth device, but they keep saying it’s done my other devices, they don’t answer my specific question. THE VOLUME IS TOO LOUD ON YOUR BLUETOOTH DEVICE!! I’ve also tried to find out how to exchange the one that is in a foreign language, but they just ignore me on that question. So if you order one and it’s in a foreign language, good luck getting ahold of anyone to get it replaced. No phone numbers, web pages, addresses… I recently purchased a similar item and the volume on it is much better. It’s still a little loud but it’s closer to the middle of the volume range so I can fine tune the volume. Will probably be returning these.
S**H
10/10 Bluetooth Receiver with Hilarious Female British Voice
Worked perfectly in my 2009 Honda CRV for 11 months, until I accidently left it in my pants pocket and washed it 😭I'm purchasing a new one as we speak because I can not function without my music.
K**R
tiny old school tech
I bought this to breathe some life into my older car that has an AUX port but no built-in Bluetooth, and honestly, it’s been a game-changer. It’s about the size of a thumb drive, so it doesn't clutter up the dash, and the setup was almost instant.The BreakdownFeaturePerformanceConnectivityStable within 30 feet; no noticeable lag. Audio QualityCrisp for music; slightly compressed for calls.Battery LifeLasts about 8–10 hours on a single charge.BuildLightweight plastic, but the 3.5mm jack feels secure. Pros & Cons✅ The Good: Plug-and-Play Simplicity: I didn't even need the manual. Pair it with your phone once, and it reconnects automatically every time you turn it on.Dual Link Support: Surprisingly, it can connect to two devices at once. Great if you’re sharing "DJ duties" with a passenger.Compact Design: Since it plugs directly into the port without a long trailing cable, it looks much cleaner than other receivers.Versatility: Works just as well on my high-end wired headphones and my old bookshelf speakers at home. ❌ The Not-So-Good: Microphone Quality: While it works for hands-free calls, the person on the other end said I sounded a bit "hollow" or distant. Best used for music rather than long business calls.Charging while Playing: You can use it while it's plugged into a USB charger, but in some cars, this can create a slight ground-loop hum (static).No Auto-On: You have to manually press the button to wake it up when you get in the car; it doesn't automatically power on when the engine starts. Final Verdict: If you want to stop messing with tangled cables and just want a reliable way to beam Spotify to your car or old stereo, this is a "no-brainer" for the price. Just don't expect it to replace a dedicated professional speakerphone for calls. Would I buy it again? Absolutely. It’s the cheapest "tech upgrade" you can give an older vehicle.
A**C
Easy Bluetooth connection for the car
Works great for adding Bluetooth to the car. Quick and easy to connect, and the sound quality is clear without static. Compact design and perfect for streaming music or taking calls hands free.
A**W
Cheaply made
Works fantastic for the price, only issue I had was it fell apart when I hit a speed bump and I had to put it back together. It charges very fast, almost no latency from phone to AUX jack. Pairs with my iPhone very easily. I do have to factory reset the device about once a week, but that’s done by holding the button for about 10 seconds so not a huge deal. All in all good product. The sound quality is great as well. Very sleek, just sticks out a bit far into the cab. Good for music and podcasts as well!
C**K
Average
Knob is breaking quick
A**Z
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3 weeks ago
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