Onn 100079037 Wireless FM Transmitter Car Charger
What’s in the Box?
Check to make sure you have everything below.
- Wireless FM Transmitter and Car Charger
- Quick Start Guide
Get to Know Your Bluetooth FM Transmitter
Controls
- USB Music Drive 5V/1A Charging Port
- 5V/3.1A Charging Port
- TF Card Reader
- USB Type-C 5V/3.1A Charging
- Reverse
- Forward
- FM Channel Selection on Button
- Color Changing Selection Button
- Bluetooth Hands-Free Button
Let’s Get Started!
Connecting to your vehicle’s radio:
Insert the transmitter into your vehicle’s 12V or 24V accessory port to power it on. Tune your car radio to a FM channel where there is no transmission. Press CH button on the transmitter and use Forward or Reverse buttons to set the transmitter to the same FM frequency.
Pairing with your Bluetooth device
Activate your smartphone or other device’s Bluetooth interface and connect to the transmitter. Look in the Bluetooth settings for “onn. Car FM Transmitter.” Your Bluetooth device will now play over your car stereo.
Open your device’s music player and stream music to your device, or insert a USB drive with music. The MP3 audio files will be automatically recognized and the music will play, or insert a TF card with music. The MP3 files will be automatically recognized and the music will play.
Bluetooth Hands-free Usage
A quick and simple button will allow you to keep your eyes on the road and your hand on the wheel. Press the hands-free button once to answer or hang up a call.
Charging your Device
Connect your device’s charging cable to one of the three charging ports.
Note: for the fastest charging connect to the 3.1 A USB port or to the USB Type-C port
But Wait … There’s More!
Battery health check! When first activated the product will display the vehicle battery voltage.
The Fine Print
This device complies with Part 15 of the FCC. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment on and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and the receiver.
- Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
RF Exposure Statement
To satisfy FCC’s RF exposure requirements, a separation distance of 20 cm or more should be maintained between the antenna of this device and persons during device operation. To ensure compliance, operations at closer than this distance are not recommended.
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Onn 100079037 Wireless FM Transmitter Car Charger-FAQs
Does an FM transmitter work in all cars?
Yes, FM transmitters are compatible with most vehicles as they use Bluetooth and FM radio frequencies. They also require minimal installation.
How does an FM transmitter function?
An FM transmitter connects to your device, either via Bluetooth or a headphone jack, and then broadcasts the signal over an FM frequency, allowing your car radio to pick it up.
Can I leave my Bluetooth FM transmitter plugged in?
It’s not recommended to leave it plugged in when the car is off, as it may drain the battery. Also, ensure it does not interfere with airbags, driving, or children’s access.
Why is my Bluetooth FM transmitter producing static?
Static may occur if the FM frequency selected is too close to a local radio station’s frequency. Try switching to a less crowded frequency for better clarity.
Does an FM transmitter play audio through car speakers?
Yes, it broadcasts audio wirelessly to your car’s speakers, allowing you to hear calls or music without physically connecting to the car stereo.
How do I reset my car’s Bluetooth connection?
Disable Bluetooth on your phone, unpair all devices from your car, then reset the system to factory settings. Reconnect your device afterward.
What is the best frequency for an FM transmitter?
For the best performance, choose frequencies at the lower (below 90 MHz) or upper (above 107 MHz) end of the FM spectrum, where there is less interference.
How do I find the frequency of an FM transmitter?
A spectrum analyzer can scan and detect available frequencies, helping you identify which ones are free of interference.
Will an FM transmitter work without an antenna?
No, an FM transmitter needs a properly connected antenna to broadcast signals effectively. Without it, the device may fail to function.