Nulaxy Car Bluetooth FM Transmitter [2024 Upgraded], 1.44" Display Flexible Gooseneck, Handsfree Call Wireless Music Stereo Audio Player Radio Adapter Car Kit USB Phone Charger, TF SD Card AUX-KM18ClimatePartner certified

I have bought and loved 2 of these.In one vehicle, if I turn my head to the right or the left while using the phone option (talking to someone) they complained that they couldn't hear me very well (this is because of this particular, unusual vehicle) but this device comes with a jack for an external microphone, so $5 later that was fixed. I use one of my vehicles to test mixes for the music that I make, also. Until I upgraded my studio, I would take my laptop to my car to conduct the final mix in the car using this - you can connect all types of things to this as long as it has Bluetooth.Also, it has a place to put an SD Card. I have put MP3's in the root of an SD Card and it works as a no frills MP3 player. If I buy a 3rd car, I will buy a 3rd one of these.

Easy setup and was paired in less than a few seconds! So glad to have this for Bluetooth again since my Car Bluetooth has become frustratingly unreliable -connects with no sound! The KM18 is a life saver for hands-free music and calls!I read the instructions first since I wouldn't have time to do that in my car.1. Plug the KM18 into the cigarette lighter.2. Turn the FM radio on. (I didn't know at first, but should REMOVE your phone from the Car Bluetooth to avoid it connecting in front of the KM18)3. Find an unused frequency channel on the FM radio -hear white noise4. Press the check+/- buttons on the KM18 to the same channel as the FM --hear nothing when they 'connect'. (The KM18 is a transmitter and the FM radio is a receiver.)5. Turn on Bluetooth on the phone and within seconds hear the KM18 say "Paired."Note: when I turned off the car and came back, my Car Bluetooth connected first! So I had to REMOVE my phone from the car Bluetooth so it doesn't interfere again -- then went thru the KM18 steps again. Should have removed Car Bluetooth first.Highly recommend, especially if you've had it with your car's Bluetooth issues!

After a decade of driving the first car my family ever had with any kind of AUX input, I'm back to driving a vehicle with nothing but a radio and CD player. I got very used to listening to podcasts and doing hands-free calls over bluetooth and listening to the tinny phone speaker while driving just wasn't cutting it.I used to use FM transmitters AGES ago and they were always junky. This one is much better, a much more polished and premium product than those crummy ones I had in the past. That said, it's still an FM transmitter and this technology as a whole is what it is.Having the DC plug built-in AND having a USB charging port built-in is very convenient. I saw another review mention that it stays powered on even when their car was turned off. I've experienced this, too, in my vehicle, both with this device and the USB charger I've been using until now. I'm no expert, but my car has 2 cigarette lighter ports - one on the dash where they always are, and another inside the center console thingy. The one on the dash will keep things that are plugged into it powered on when the car is off, but the one in the center console powers the device off when the car is turned off. I have no idea if this is a common thing in cars or not, but maybe it'll be something to try for anyone else having the same issue.The bluetooth connection on this works really well. It pairs with my phone quickly and the connection is pretty stable on that end. The screen is easy to read, the volume dial works well and so on. Tuning to an empty station can be a little tedious, since you have to click, click, click one at a time, but I mean, that's just how it goes. My car's radio only tunes based on .2 (i.e., it goes from 88.7 to 88.9 for example) while this device tunes based on .1 (88.7, 88.8, 88.9, etc). I'm not sure that means anything but it's something I noted. But it's nice that you can try almost any frequency on the FM radio dial; the first FM transmitter I got back in high school just had a toggle switch that only gave you 4 options!All that said, the connection and sound and experience vary, as they always do with these devices. It seems like it was rougher the first week I had this and I've been having better luck since then. There's usually a little crackle or hiss, especially when the sound is a little punchier (ie, when a podcast host is putting extra emphasis at the end of their sentences). One day I noticed that I was sometimes getting more static when I was stepping on the brake than not. One day I consistently got mostly garbled signal.For whatever reason I've had a smoother experience the past week. And maybe it does better when I'm driving around closer to my house than when I go across town. I'm no expert on the science behind it; this is all just anecdotal observations and I can't draw any real conclusions.But that's kind of the thing with these devices. They work by transmitting to your radio, and if your area doesn't have any nice, clean, unused frequencies it'll have to work over a strong, existing signal (I guess?). You'll have to play around with it to find one that works well enough and you have to understand that sometimes the experience will be more finicky and disappointing than other times and that's just how it's going to be.As for the hands-free phone function, I haven't tried it out yet. I did also miss that from my previous vehicle, but the need has not come up to test it yet. Given that the control to pick up is on the device and not a button on my steering wheel, I expect it will be slightly less convenient to reach to pick up, depending on where your DC outlet is.I spoke kind of harshly about this, but honestly I'm not dissatisfied. Especially for this price; it's a solidly-built device that interacts with your phone very well. (Oh, the charging port is great, too - charges just as fast as my dedicated USB car charger, if not faster. It's not just a junky afterthought). But again, you have to have realistic expectations of the sound quality you're going to get.I think it's worth giving a try. For the most part, it's a better experience listening to podcasts through my car speakers with sometimes iffy sound quality, but it's comfortable enough to listen to more often than not. It's never going to be anywhere near as clean a sound as a more direct connection to your vehicle's sound system, but if you don't have any other options I think it's worth a try.I've been using it consistently since I got it a few weeks ago. There has been one trip where things got garbled enough for me to turn it off, a few more where the sound was obnoxious but listenable, and more where it's ranged from minor-hisses-and-crackles to no noticeable issues. I'm satisfied with the purchase, and at this price I feel like it's worth the money.