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Your cart is empty.Product Description
Superior Stereo Sound
Our transmitter allows you to add wireless audio to your existing car stereo system instantly, and listen to your favorite songs and podcasts from your smartphone using in-car FM radio broadcast.
Crystal Clear Calls
Featuring a built-in high sensitivity microphone and echo and background-noise-reduction feature, you will always hear your conversations clearly.
LED Display & Touch Control
Developed with a large LED screen to better visualize FM frequency, our transmitter is highly responsive and allows you to easily reconect your phone, play or pause your music and answer or disconnect a call at the touch of a button.
2-in-1 Transmitter
Whether you choose to use our transmitter in wireless mode and rely on the long-lasting, built-in battery, or connect it to your car via the included charging cable, CK310 delivers hours on end of your favorite tunes, books or podcasts to make your drive time more enjoyable.
No Wires to Tie You Down
Unlike older devices that connect to your cigarette holder and limit the number of mounting places in your car, CK310 is a wireless device that comes with magic tape to be placed wherever is most convenient for you!
Long Live Your Battery
Our rechargeable lithium-ion battery delivers up to 7 hours of talk time and 9 hours of music time. When running low, simply charge for 2 hours to continue your car audio experience.
Note: It can also be used with charger connected. NO worry about the battery.
Avantree Bluetooth FM Transmitter for Car Wireless Car Kit
Specifications
- Supported Profiles: HFP, HSP, A2DP and AVRCP
- FM Frequency Range: 88.1MHz-107.9MHz
- FM Transmitter Range: Up to 12ft
- Bluetooth Operation Range: Up to 30ft
- Talk Time: Up to 7 hours
- Music Time: Up to 9 hours
- Standby Time: Up to 12 hours
- Charging Time: about 2 hours
- Battery: 370mAH Lithium-ion battery
What’s in the box
- Avantree CK310
- Magic Tape *2pcs
- 0.8m Micro USB cable
Andrew Wittrock
2025-09-06 09:47:58
I have a car from 2004. There is no Bluetooth, no aux in, and no tape deck (for the tape adapters). I didn't want one of the units that plugs into the 12v/lighter since it would interfere with my phone mount - luckily this one functions by cable or on battery. I wasn't sure how well it would work based on existing reviews. Turns out it works well with the right station choice. I cannot speak to the battery life, since I'm running it wired.Pros:• Compact and easy to mount• Easy setup• Simple configurationCons:• Wish it was USB C• No lock, so an errant tap can change the frequency• Wish it would automatically turn off after a while while plugged in (it does automatically turn off when on battery)Overall, I'm very pleased. It's temporary for the 2004 until I upgrade the head unit, when it'll go into a car from 1985.
Customer
2025-09-02 12:16:11
The radio in the Bugatti Veyron is not the best , even since new. I took a chance on this inexpensive gadget and it works perfectly. It’s so easy to use and so small . It’s not as good as something hardwired but it’s not bad . We streamed itunes and it sounded really good . You can’t beat it especially for 30 bucks or whatever it was .
Timmer
2025-08-15 12:06:28
I bought one of these for my aging car so that I can listen to podcasts while driving. My current vehicle has a stero that forgot the aux jack and rather than pay a tech a few hundred $$ to fix it, I bought this. It works.Overall, I'll say the unit functionally works well. I have it plugged into a cig-to-USB power source. When I turn the car on, it starts up fine. My phone has no issue connecting without needing interaction. I can play audio from my phone no problem. When I turn the car off, it eventually shuts down. This is all solid and I really like simplicity of it as it kind of becomes a part of how the car works, rather than another thing to maintain.One note: I do have Bluetooth for phone calls in my car (just not playing audio from my phone). Since there are controls for my phone on my steering wheel, I disabled calls going to this device in the Bluetooth settings on my phone. That allows me to answer calls using the cars controls and not go through this device. Therefore, I cannot speak to how well it handles calling.The one odd thing I've noticed is that it broadcasts fairly quiet. In my case, the audio from my phone has to be about 95% and the audio from my car needs to be turned up to 40% or so to really hear it. By comparison, I usually have audio for my phone around 20% when listening, and I normally listen to the radio in my car at about 12%. Thus, if I ever change FM channels, I need to be careful to turn the volume down first or I may scare myself.The sound level was not something that made it worth returning though. It meets my needs - even with this one quirk - and for the price, I was fine with it. It definitely beats out paying a tech to reprogram the radio.Lastly, know that I did write the company about the issue and we tried replacing it with a different unit. I had the same issue with the replacement. It was also replicated on a different phone.Regardless, while not perfect, it is good enough for me and I'd still recommend it to others looking for a similar solution as something to try.
Matt
2025-07-24 16:56:24
Using with a stock radio on my 2008 Harley because it doesn't have Bluetooth. This was a great and inexpensive way to avoid changing the head unit. Sound quality is great.
Tinka G.
2025-06-23 16:21:33
The design is great, you can charge it and use the Velcro to hold it when convenient but the signal is not great. When you finally find a signal it is fuzzy and only gets worse over time. I've used better fm transmitters for less money but it does work
JW
2025-06-20 14:15:03
So glad I purchased this item! I have an older car that doesn't automatically turn off the cigarette port when the car is turned off. That is why I decided to go with this chargeable device to prevent car battery drainage. This device is easy to use and takes up hardly any space. The on and off button is super responsive and acts quickly, so you don't have to wait more than 1 second to turn it on or off. You can stick it anywhere with the 3M adhesive velcro. The sound quality is excellent for operating as an FM transmitter (sounds like FM radio). My recommendation is to upgrade the micro usb port to a USB-C for future models.
Thomas Demoski
2025-06-05 14:15:35
Great transmitter, for its size, it's pretty small, even comes with velcro to put it where u want.
Byron C. Deerr IV
2025-05-15 12:49:05
It’s not top shelf audio quality but it IS Bluetooth so you can only expect so much. It works great though, battery seems to last about a week when using it an hour a day roughly. Making phone calls with it worked great with some phones and barely at all with others. Nice and small so it doesn’t get in the way and the sticker is super strong and even moving it from one car to another it left no residue and still holds super strong. Volume buttons would have been nice but eh.
Client d'
2025-04-20 13:49:48
I'm using it to listen to my phone on an old boombox with no bluetooth or AUX in. Easy to set up, does not take much space. The sound is good but there is a (very) low background noise (I have tried multiple frequency), which can be removed by setting your phone volume very high and the volume on the boombox as low as possible. This is due to converting a Bluetooth signal (digital) to FM (analog). This my second product from Avantree and I recommend this vendor.
Ricardo Romo
2025-04-04 18:14:20
Muy compacto fácil de instalar y usar...dura mucho la pila y se escucha genial
Haseeb
2025-03-17 11:41:12
Good light weight device and sound quality is excellent for the price. Plus it's not for lighter only so it can used anywhere
A. Wi
2025-01-04 13:56:56
War überhaupt kein Problem das Gerät zu koppeln, funktioniert einwandfrei. Und da es so wunderbar klein ist, stört es überhaupt nicht am Armaturenbrett. Handhabung ist auch super einfach.
Jennifer Vazquez
2024-12-31 14:31:27
J'ai acheté plusieurs appareils comme celui ci dans le passé mais celui-ci est définitivement le meilleur de tous. Le signal est bon et permet d'écouter du son de qualité.
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