--- product_id: 230311654 title: "Nulaxy KM30 Bluetooth Car Adapter, FM Transmitter with 1.8\" Color Screen, Hands-Free Calling Strong Mic, QC3.0 Fast Charging, Treble & Bass Sound Music Player, Wireless Radio Receiver, AUX TF USB" brand: "nulaxy" price: "€ 41.10" currency: EUR in_stock: true reviews_count: 11 category: "Nulaxy" url: https://www.desertcart.fr/products/230311654-nulaxy-km30-bluetooth-car-adapter-fm-transmitter-with-1-8 store_origin: FR region: France --- # QC3.0 fast charging port Treble & bass adjustable sound 1.8" vibrant color screen Nulaxy KM30 Bluetooth Car Adapter, FM Transmitter with 1.8" Color Screen, Hands-Free Calling Strong Mic, QC3.0 Fast Charging, Treble & Bass Sound Music Player, Wireless Radio Receiver, AUX TF USB **Brand:** nulaxy **Price:** € 41.10 **Availability:** βœ… In Stock ## Summary > πŸš— Elevate your drive with smart sound & power β€” never miss a beat or a call! ## Quick Answers - **What is this?** Nulaxy KM30 Bluetooth Car Adapter, FM Transmitter with 1.8" Color Screen, Hands-Free Calling Strong Mic, QC3.0 Fast Charging, Treble & Bass Sound Music Player, Wireless Radio Receiver, AUX TF USB by nulaxy - **How much does it cost?** € 41.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/230311654-nulaxy-km30-bluetooth-car-adapter-fm-transmitter-with-1-8) ## Best For - nulaxy enthusiasts ## Why This Product - Trusted nulaxy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Vivid 1.8" Color Display:** Stay informed with clear visuals of caller ID, track info, FM frequency, and battery voltage at a glance. - β€’ **Power-Packed Fast Charging:** QC3.0 port delivers up to 4x faster charging, keeping you and your passengers powered on the go. - β€’ **Seamless In-Car Connectivity:** Effortlessly stream music & calls via Bluetooth, USB, AUX, or microSD for ultimate versatility. - β€’ **Customizable Audio Experience:** Fine-tune your sound with adjustable treble and bass modes that sync dynamically with your music. - β€’ **Crystal Clear Hands-Free Calls:** Enhanced microphone with noise cancellation ensures your voice is heard loud and clear, hands-free. ## Overview The Nulaxy KM30 Bluetooth Car Adapter transforms any vehicle into a smart audio hub with its 1.8" color screen, multi-source music streaming, and hands-free calling. Featuring QC3.0 fast charging and customizable treble/bass sound modes, it delivers a premium in-car entertainment and connectivity experience tailored for modern drivers. ## Description desertcart.com: Nulaxy KM30 Bluetooth Car Adapter, FM Transmitter with 1.8" Color Screen, Hands-Free Calling Strong Mic, QC3.0 Fast Charging, Treble & Bass Sound Music Player, Wireless Radio Receiver, AUX TF USB : Electronics Review: No Frill FM-Bluetooth Transmitter - This is really a no frills FM-Bluetooth Transmitter. But there are some faults to this. Let me share the bad then move on to the good. But let me share this major tip. Set the transmitter volume to maximum. While this is a FM-Bluetooth transmitter, it is really is not meant for phone to phone conversation & this product isn't it's strongest feature. Why? Let me explain. When making or receiving a call. You have to press your preset radio station if it's not already chosen to make or receive calls. Especially if you are listening to another preset radio station. It can be annoying to hit that FM Transmitter station. This has happened to me on several occasions. But it'll be repetitive soon. Now several users has mentioned about the feedback noise. While this is true and it stems from the alternator. It's only when you are on a bluetooth call and the radio volume is on a very high setting. However, this does not affect during bluetooth music streaming or using the USB Drive. What I mean is that, when you need to hear someone from the other end of a phone call. The transmitter isn't as strong to produce the sound to all speakers. Even when you have your phone bluetooth volume on maximum. YOu need to turn up the volume from your radio head unit. But again this also depends on your own car speakers as well. So that is one feature that could be improved if the manufacture decides to do so. My other annoyance, is the USB connection. Depending on the cable or USB drive you use. It can be somewhat a tight fit as you can see in my pic. Sure I can buy a right angle cord to charge my phone. But why add more cables to my collection? Now for the USB drive. This can be somewhat a good thing and a bad thing. Upon start up. It can either be recognized or not. Sometimes while playing it'll just go to "unrecognized" for several seconds. Then it comes back again. This product only plays MP3's. No wav, mp4. I cannot comment on AAC or ALAC as I don't have songs in those format. So if you going to bring your music onto a USB Drive. Be sure it's in a format that the KM 30 can play. I haven't tried the SD card feature as of yet. So I will make an update at a later time. The good. The Bluetooth streaming is great. Providing you set your equalizer on your phone correctly or neutral. Most modern Smartphones has an EQ feature. So I suggest you play your favorite song or a song that has a balance of bass, treble and mids. This will ensure that whatever streaming music you use. You will get that sound great. Even with the OEM speakers. Once that is complete. You will want to adjust your stock your radio sound settings. Most stock radio has bass, mids and treble. Set those at neutral and adjust accordingly. Then move onto the KM30 bass and treble and adjust accordingly. This will take some to get the sound you are after from your . Using a USB Drive? Well this all depends on your music library. If you have a library of music on a hard drive, not all music are set a particular bit rate (kbps). I know I don't. I have bit rates ranging from 92kbps to 320kbps. So the best method from my 2 week experience. Again find a music that is really balanced with bass, mids and treble and have a 128kbps. I actually used Metallica- Hollier than Thou and Delinquent Habits - California. Yes I have a wide range of music taste when I cruise. When you play you will have to make adjustments to the bass, mids and treble from your stock radio and from the KM30. So music lovers between normal radio stations, music streaming to music on a USB drive. You will need to find that balance of sound. While this might be a pain. It's so much better than making a phone call. Again this is a no frills FM-Bluetooth Transmitter. This works perfect for older cars once the sound is dialed in correctly. My only suggestion that this product would have an edge over the others. If this could pivot left and right. But that is a small pet peeve on my part. Enjoy! Car 2004 Mazda3 Hatchback. Stock Radio with 2 year old JBL Club 6x8 Speakers in 4 doors. No amps. Review: It work effortlessly. - This is a great csr adapter,as long as you have a cigarette lighter in your car console. You can talk on the speaker in your car,the adapter connects so easily with my android phone as soon as I turn my car on its loud and very clear. I need to order a spare,just to have. I read so meny reviews on others and tried them after one day I returned it to desertcart This was my third choice , it should have been my first. O yea it even displays your name and play list, with the name of songs and artists ## Features - Car Bluetooth FM Transmitter: Nulaxy KM30 bluetooth car adapter provides multi-solutions for your hands-free driving and in-car stereo streaming. It features a big display screen offering a wider visual interface for more information, such as incoming phone number, track name, FM frequency, battery voltage, Bluetooth connected device and more. - Stronger Microphone for Better Hands-free Calls: KM30 utilizes stronger microphone, greatly amplify sound reception and strengthen sound quality, bringing a higher level of experience. - Treble & Bass Music Streaming: You can stream music directly from your car radio via Bluetooth, microSD card, Aux out, and enjoy free switching between treble and bass mode, the color spectrum auto-syncs with your music. - QC3.0 Fast Charging: It Comes with a QC3.0 charging port to deliver high-speed charging to driver and passenger, the charging time is 4 times faster than conventional charging. - Kindly Note: Compatible car cigarette lighter socket dimensions: Diameter (without spring clip): 20mm，Diameter (with spring clip): 24mm, the deepth of the car cigarette lighter socket is 65-70mm. Surface dimensions of the KM30 Bluetooth FM Transmitter: the width of the screen plain surface is 41mm, the length is 85mm, and the thickness is 14-16mm (With rotary button is 24mm). Please compare the size between the transmitter and your car cigarette lighter bofore getting it. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08D3S85FW | | Additional Features | Big Display Screen, Built-In Microphone, Fast Charging, Hands-Free Calls, Noise Cancellation | | Audio Input | Bluetooth | | Audio Output Mode | Stereo | | Audio Output Type | bluetooth | | Battery Type | Lithium-Ion | | Best Sellers Rank | #21 in MP3 Player FM Transmitters | | Bluetooth support? | Yes | | Brand | Nulaxy | | Color | Black | | Compatibility Options | Compatible | | Compatible Devices | Car Stereo System | | Compatible with Vehicle Type | Most Vehicles with Radio and Power Outlet | | Connectivity Technology | Bluetooth | | Connector Type Used on Cable | Auxiliary, USB Type C | | Control Method | Voice | | Control Type | home_automation | | Controller Type | HomeKit | | Customer Reviews | 4.4 4.4 out of 5 stars (18,893) | | Display Type | LED | | Enclosure Material | Acrylonitrile Butadiene Styrene (ABS), Metal | | Hardware Interface | Bluetooth | | Human Interface Input | Touchscreen | | Includes Remote | No | | Installation Type | Plug In | | Item Weight | 0.09 Kilograms | | Lithium-Battery Voltage | 12 Volts (DC) | | Manufacturer | Nulaxy | | Model Name | KM30 | | Number of Batteries | 1 Nonstandard Battery batteries required. | | Number of Channels | 1 | | Number of Ports | 1 | | Power Source | Battery Powered | | Rechargeable Battery Included | Yes | | Screen Size | 1.8 Inches | | Supported Application | Bluetooth, USB, microSD card | | Supported Media Type | TF Card | | Supported Standards | Bluetooth | | Voltage | 12 Volts (DC) | | Warranty Description | 1 Year Manufacturer | | Wireless Compability | Bluetooth | ## Product Details - **Brand:** Nulaxy - **Connectivity Technology:** Bluetooth - **Material:** Acrylonitrile Butadiene Styrene (ABS), Metal - **Power Source:** Battery Powered - **Special Feature:** Big Display Screen, Built-In Microphone, Fast Charging, Hands-Free Calls, Noise Cancellation ## Images ![Nulaxy KM30 Bluetooth Car Adapter, FM Transmitter with 1.8" Color Screen, Hands-Free Calling Strong Mic, QC3.0 Fast Charging, Treble & Bass Sound Music Player, Wireless Radio Receiver, AUX TF USB - Image 1](https://m.media-amazon.com/images/I/71GXtvvTN1L.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: The KM30 Car FM Transmitter is not working, or display is not showing.** A: 1) Ensure the device is properly connected to the cigarette lighter port, and the cigarette lighter is not significantly rusted. 2) Unplug the device and try connecting it again. 3) Check if the cigarette lighter port is receiving power normally. **Q: The Bluetooth transmitter is not compatible with my car, or compatible size range for car cigarette lighter interfaces.** A: 1) Compatible car cigarette lighter socket dimensions: Diameter without spring clip: 20mm, with spring clip: 24mm, deepth: 65-70mm. 2) Screen Plain Surface dimensions: Width: 41mm, length: 85mm, thickness: 14-16mm (With rotary button: 24mm). **Q: Noise is present, but there is no sound.** A: 1) Confirm that the player is activated and not in pause mode. 2) Check and adjust the volume settings on the car radio, FM transmitter, and the connected external device as needed. 3) Try switching channels to see if it works properly. **Q: Unable to play.** A: 1 ) Ensure the USB device is properly connected to the player. Or try using another USB device. 2) Confirm the files on the USB device are supported by the KM30. 3) You're welcome to contact our professional 24/7 service team for any questions. **Q: The car audio is not receiving sound.** A: 1) Ensure the FM transmitter is turned on. 2) Verify the frequency of the FM transmitter matches the frequency of the car's radio. 3) Ensure the volume is not set to 0. ## Customer Reviews ### ⭐⭐⭐⭐⭐ No Frill FM-Bluetooth Transmitter *by G***B on November 15, 2024* This is really a no frills FM-Bluetooth Transmitter. But there are some faults to this. Let me share the bad then move on to the good. But let me share this major tip. Set the transmitter volume to maximum. While this is a FM-Bluetooth transmitter, it is really is not meant for phone to phone conversation & this product isn't it's strongest feature. Why? Let me explain. When making or receiving a call. You have to press your preset radio station if it's not already chosen to make or receive calls. Especially if you are listening to another preset radio station. It can be annoying to hit that FM Transmitter station. This has happened to me on several occasions. But it'll be repetitive soon. Now several users has mentioned about the feedback noise. While this is true and it stems from the alternator. It's only when you are on a bluetooth call and the radio volume is on a very high setting. However, this does not affect during bluetooth music streaming or using the USB Drive. What I mean is that, when you need to hear someone from the other end of a phone call. The transmitter isn't as strong to produce the sound to all speakers. Even when you have your phone bluetooth volume on maximum. YOu need to turn up the volume from your radio head unit. But again this also depends on your own car speakers as well. So that is one feature that could be improved if the manufacture decides to do so. My other annoyance, is the USB connection. Depending on the cable or USB drive you use. It can be somewhat a tight fit as you can see in my pic. Sure I can buy a right angle cord to charge my phone. But why add more cables to my collection? Now for the USB drive. This can be somewhat a good thing and a bad thing. Upon start up. It can either be recognized or not. Sometimes while playing it'll just go to "unrecognized" for several seconds. Then it comes back again. This product only plays MP3's. No wav, mp4. I cannot comment on AAC or ALAC as I don't have songs in those format. So if you going to bring your music onto a USB Drive. Be sure it's in a format that the KM 30 can play. I haven't tried the SD card feature as of yet. So I will make an update at a later time. The good. The Bluetooth streaming is great. Providing you set your equalizer on your phone correctly or neutral. Most modern Smartphones has an EQ feature. So I suggest you play your favorite song or a song that has a balance of bass, treble and mids. This will ensure that whatever streaming music you use. You will get that sound great. Even with the OEM speakers. Once that is complete. You will want to adjust your stock your radio sound settings. Most stock radio has bass, mids and treble. Set those at neutral and adjust accordingly. Then move onto the KM30 bass and treble and adjust accordingly. This will take some to get the sound you are after from your . Using a USB Drive? Well this all depends on your music library. If you have a library of music on a hard drive, not all music are set a particular bit rate (kbps). I know I don't. I have bit rates ranging from 92kbps to 320kbps. So the best method from my 2 week experience. Again find a music that is really balanced with bass, mids and treble and have a 128kbps. I actually used Metallica- Hollier than Thou and Delinquent Habits - California. Yes I have a wide range of music taste when I cruise. When you play you will have to make adjustments to the bass, mids and treble from your stock radio and from the KM30. So music lovers between normal radio stations, music streaming to music on a USB drive. You will need to find that balance of sound. While this might be a pain. It's so much better than making a phone call. Again this is a no frills FM-Bluetooth Transmitter. This works perfect for older cars once the sound is dialed in correctly. My only suggestion that this product would have an edge over the others. If this could pivot left and right. But that is a small pet peeve on my part. Enjoy! Car 2004 Mazda3 Hatchback. Stock Radio with 2 year old JBL Club 6x8 Speakers in 4 doors. No amps. ### ⭐⭐⭐⭐⭐ It work effortlessly. *by S***R on December 20, 2025* This is a great csr adapter,as long as you have a cigarette lighter in your car console. You can talk on the speaker in your car,the adapter connects so easily with my android phone as soon as I turn my car on its loud and very clear. I need to order a spare,just to have. I read so meny reviews on others and tried them after one day I returned it to Amazon This was my third choice , it should have been my first. O yea it even displays your name and play list, with the name of songs and artists ### ⭐⭐⭐⭐ EASY BLUETOOTH WITH OLDER CAR! *by J***Y on March 5, 2026* EASY TO USE AND PAIR WITH. SCREEN IS IMPOSSIBLE TO SEE IN BRIGHT SUN (USING IN A CONVERTIBLE SO MAY BE OK IN CLOSED ROOF VEHICLE) ## Frequently Bought Together - Nulaxy FM Bluetooth Transmitter for Car, Strong Microphone Bluetooth Car Adapter with 1.8" Color Screen for Hands-Free Calls, Supports QC3.0 Charging, Treble and Bass Sound Music Player- KM30 - SUUSON Upgraded 3-in-1 Car Phone Holder Mount [Powerful Suction] Phone Mount for Car Dashboard Air Vent Windshield,for All iPhone Android Phone (Black) - 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-KM18 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.fr/products/230311654-nulaxy-km30-bluetooth-car-adapter-fm-transmitter-with-1-8](https://www.desertcart.fr/products/230311654-nulaxy-km30-bluetooth-car-adapter-fm-transmitter-with-1-8) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-04-23*