onn 20W/18W Wireless FM Transmitter and Car Charger
onn 20W/18W Wireless FM Transmitter and Car Charger
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Overall pick
onn

onn 20W/18W Wireless FM Transmitter and Car Charger

59 ratings

Key item features

  • Bluetooth wireless technology supports hands-free calling and audio streaming
  • Streams music and phone calls through your vehicle's FM radio
  • USB-C charging port supports up to 20 watts charging for compatible devices
  • Quick Charge-enabled USB port supports up to 18 watts charging for compatible devices
  • Supports playback from USB flash drives and microSD cards
  • Built-in microphone with echo cancellation helps support clearer calls
  • Built-in protection helps guard against over-voltage, over-current, overheating, and short circuits

Specs

Inputs/Outputs, USB-C, USB Charging Port, FM Radio Receiver, MicroSD Slot, MicrophoneInput/output quantity, 1Wireless, YAccessories, FM transmitter car chargerPower type, Corded ElectricBrand, onn

About this item

Product details

The onn Wireless FM Transmitter and Car Charger brings audio streaming, hands-free calling, and device charging together for your drive. Using Bluetooth wireless technology, it streams your music and phone calls through your vehicle's FM radio, so you can listen and talk without taking your hands off the wheel. A built-in microphone with echo cancellation helps support clearer calls, and when you want another audio source, you can play audio straight from a USB flash drive or a microSD card. Its two charging ports also help keep your compatible devices powered up while you travel, so your connectivity and charging needs are handled in one unit.
  • Bluetooth wireless technology supports hands-free calling and audio streaming
  • Streams music and phone calls through your vehicle's FM radio
  • USB-C charging port supports up to 20 watts charging for compatible devices
  • Quick Charge-enabled USB port supports up to 18 watts charging for compatible devices
  • Supports playback from USB flash drives and microSD cards
  • Built-in microphone with echo cancellation helps support clearer calls
  • Built-in protection helps guard against over-voltage, over-current, overheating, and short circuits
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Inputs/Outputs

USB-C, USB Charging Port, FM Radio Receiver, MicroSD Slot, Microphone

Input/output quantity

1

Wireless

Y

Accessories

FM transmitter car charger

Customer ratings & reviews

4.4 out of 5 stars
stars
59 ratings35 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars66% (39)
  2. 4 stars15% (9)
  3. 3 stars17% (10)
  4. 2 stars0% (0)
  5. 1 star2% (1)

Reviews summary

Pros

  • : The 20w port powers devices and allows audio.
  • : The microphone lowers feedback and produces clearer voice.
  • : System enables calls and media skipping while driving.
  • : It reduces background noise and clarifies call audio.

Cons

  • : The radio requires frequent retuning because interference degrades reception.
Generated by AI
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
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Showing 1-3 of 35 reviews

Oct 26, 2026
Reviewer name: Hotsauce
Top Reviewer
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great connection

I have been using this in my old hooptie for some time now and no issues. Connects to my phone immediately when I get in. Works well

Helpful?3GDZAY6DQB4D19323900222
Sep 9, 2026
Reviewer name: Tyquon
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

best fm transmitter ive had in a while 5 stars easy

Helpful?3GDZAY6DQB4D19323900222
Nov 4, 2026
Reviewer name: WalmartCustomer
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

This product provided just what I needed to transform my ********* Toyota into a modern day audio machine. I connected with the Bluetooth and the vacant radio frequency and I was good to go immediately.

Incentivized Review
Helpful?3GDZAY6DQB4D19323900222
Current price is $14.88
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