Nulaxy Bluetooth FM Transmitter for Car, Wireless Car Bluetooth V5.0 Adapter with Big Color Screen, Support QC3.0 Fast Charging, Hands-Free Call, MP3 Music Player BASS&TRE Booster, TF Card AUX-KM28

If you are a roadwarrior with an older vehicle and like to stream music, make hands-free calls through your vehicle sound system (where the other person on the call can actually hear you), plus have several handy features in an attractive package, then this new Nulaxy unit should be on your short list of vehicle Bluetooth/FM car transmitters. I own three older German cars (two '99s and an '04), none of which support bluetooth connections to their respective radios. Over the last 10 years, I've purchased maybe a dozen or so Bluetooth-to-FM transmitters including Nulaxy's original BT/FM transmitter, and while they all worked fairly well as far as being able to pair my iPhones to the car radios to play music, they all fell completely flat when it came to the fidelity of the built-in microphone when making hands-free calls while driving. Most of the time I was forced to switch my phone to speakerphone because the other person on the line could barely hear me even though I was practically yelling into the mic on the BT/FM transmitter. Unacceptable, but no other options. Fortunately, now there are! Recently I set out to find a BT/FM transmitter with either a plug-in external mic or a decent built-in mic and voila, this new Nulaxy model popped up on Amazon along with several other brands, all featuring rather robust looking microphone inputs instead of the tiny pinhole mics of the older models. I chose this Nulaxy unit as I am familiar with the brand and because it offers several features that were not available with the first gen or other newer models. PROS: - The head unit of this model can be mounted on the AC vent (or the dash with some creative use of velcro) making it far easier to see and use while driving. All of the older models had to be plugged down low in the car's cigarette lighter making it virtuallly impossible to adjust while driving (specifially when changing FM bands if the band being used is stepped on by a radio station on or next to the FM frequency being transmitted to. If you have ever owned a BT/FM car transmitter and travel a lot, you know exactly what I'm talking about). - Very nice, sharp 3" color display showing all necessary information - Info on screen is very legible - Multi-colored graphic equalizer display that turns out to be actually useful when dialing in just the right mix of bass and treble. - Lighter plug has two USB ports including a fast charger port, which is able to get my iPhone 15 from 20% to 80% charge in 15-20 mins of driving. Nice! - Bass boost! At full boost, it sounded almost like there's a subwoofer in the car. (I had to turn it down to about 50% to avoid blowing out the old OEM speakers) - Treble boost. Not as "Wowsy" as the bass boost, but it does let you change the EQ depending on what music is playing. Will probably become a "Can't live without" feature over time. - It looks like it belongs on the dash. (Several passengers asked me if this was a MB/BMW accessory! LOL) - It has USB and Microdisk inputs if you like to play pre-mixed MP3s. Haven't used them and likely never will, but I imagine they work fine. - Excellent price point. You get a lot of features for a fairly low price. CONS: - Based on past experience with previous gen units, I am unsure of how long it will take for the screen to die or the control buttons to stop working. Typically, the previous model screens and buttons would be dead or close to death within a year or so. Fortunately, Nulaxy has a 2-year replacement warranty for this model giving me some level of comfort. I'll update a year from now and let ya'll know how that goes. - This is nitpicking - but - the display screen backlight is set for optimal viewing at night, which as a default makes sense. However, it would be nice to include a day/night button to boost the display backlight, especially on sunny days. With sunglasses on, I literally cannot see anything on the display and without sunglasses on, it is subdued at best, but readable. (Nulaxy, get your engineers on that asap!)

Lots of fancy pics in the listing and lots of positive reviews, but no useful details on the specifics of how this unit actually works so here you go- -This unit will play MP3s and other music formats from a USB port or microSD card slot on the unit -Stream music/sound via Bluetooth from apps on your phone -interface with phone for making and recieving calls -charge devices via two USB ports at the cigarette lighter plug First and foremost, this unit has a 3.5mm/ 1/8" plug on the bottom of it. This is a variable line-level OUTPUT to feed audio signal from this device to the AUX input on your factory system. It is NOT an "AUX IN" that adapts the audio from an external device to broadcast via FM to your factory radio. Secondly, this unit has "bass" and "treble" adjustments for some reason; do not use these- just leave them at zero. I believe that the distortion in sound noted by other commentors may be partly caused by maxing these out. Thirdly, the "volume" control on this unit (1-31) is NOT meant to be used as a volume control. This is a gain/level matching adjustment same as you would find on an external car audio amplifier. The proper way to set this is to tune your radio to a regular station or play a tape/CD, then switch back and forth between that source and this bluetooth unit and adjust the gain on this unit up or down to get the volume as close as possible to the native source. Again, the distortion in sound that other people are complaining of is likely due to maxing the "volume" on this unit at 31 and overdriving the input of the factory system. This gain level defaults to "25" every time you powercycle the unit. I have matched it to my factory radio's AUX in and it sounds best between about 19-23 so I have to turn the gain on this unit down a couple notches every morning when I first power it up. This gain number is always displayed at the top edge of the screen so you can see it at all times. Once this gain level is set you use your volume and EQ settings on your factory radio as normal. It's also worth noting that when connected to your phone via bluetooth changing the volume via the buttons on your phone will also chage the level on this unit, and the number on the display will change accordingly. I have not used the FM transmitter function but as far as I can tell it transmits on the selected frequency at all times and I have not found any settings in the unit to disable it. I use this unit in my work vehicle primarily to play MP3s off of a micro SD card. I plug it in first thing in the morning and it is in use for 8+ hours, 6 days a week. It has performed great for the last several weeks. I also occasionally stream music from Spotify via my phone and the bluetooth connection. Again it works great, sounds great all day long. I don't chat on the phone a whole lot in the car but when I recieve a call it shows the name/phone number on the screen and declares the number through the audio system so I know who is calling without having to look down at the screen. I can then press the large knob to answer the call. This unit is controlled primarily with the large knob right of the screen. It has positive detents when turned and a solid feeling "click" when you press it. You press and release to answer calls, or pause music. You press and HOLD to enter the menu where you can control more advanced functions. When in the microSD card mode, the first option on the menu is "local folder" which is where you can access the folder structure of the microSD card or USB thumbdrive and navigate through your music same as you would on any cheapO portable MP3 player/ipod. The only critisizm I have of the unit would be that when you spin the wheel it sometimes goes in the opposite direction "up" instead of "down" so you have to keep an eye on the screen to make sure it's doing what you're commanding it to do. Added bonus- I ordered the "yellow" color unit and it actually matches perfectly with the light brown-tan colored interior of my car. Not sure where they got YELLOW from but you can kind of see in the photos that it is clearly not even close to yellow in color

This FM transmitter works as expected, giving good and stable bluetooth connection to my phone and FM connection to radio. The quality of the microphone is satisfactory, the other party hears me well when I speak. The charger charges fast enough. What I wish was different was that the caller's name was shown on the screen. Bigger font would come handy. Not all buttons are illuminated, so sometimes it's harder to find some of them in the dark.

Hasta el momento no he tenido ni un solo problema, funciona correctamente, excelente producto.

Many Thank you to the entire Nulaxy team, I did have an issue with the original item, and within a day , from the after sale support, Anita, not only was the issue resolved, the replacement item arrived the next day, well packaged and ready for use. The item itself is small enough not to clutter the dash, the screen is large enough to easily see and operate, function buttons are well placed and are responsive to touch, the multi function knob is precise in function, for volume, taking and ending calls, during music playback, a short press brings up the menu for the equalizer with popular presets to choose from, each preset has a audible change when selected, a working feature, the graphic eq has a spectrum display, bright enough to see in daylight, illuminated, yet soft enough not to be a distraction in the night. Bluetooth connection is very fast and solid, no interference, call reception is clear inside of car, the person on the other end hears the call like it is on a phone speaker, unless they take the call on a Bluetooth in their car. Either way, sound quality is present without being garbled. Same goes for music playback, uninterrupted playback, clear sound connection. The USB and SD card is read and displayed, playback is clear and uninterrupted from signal loss. Charging port is a handy addition, charges well and does not affect playback. A long press on the treble button will turn of the item, otherwise, the item turns off and on with the vehicle. What makes this product stand above other similar brands is the complete customer service, from purchase to after sale care, the Nulaxy company is staffed by people who are sincere in their offerings of products and are committed to standing by and protecting their reputation and will certainly make available a positive resolution to any issue. A trusted company, will recommend and purchase from them again.

Funziona perfettamente con la radio originale della Toyota corolla verso 2005.

Lo uso cada vez que cojo el coche. El sonido de la radio y playlist del móvil es excelente