In a car with an old radio, an FM transmitter is the simplest way to get phone music into the speakers: the device goes into the cigarette lighter socket, you pick a free radio frequency and pair the phone over Bluetooth. Most models double as a car charger, often with USB-C PD and fast charging — the Forever and XO ones deliver up to 30 W. If the car has an AUX input, a Bluetooth receiver such as the Hoco E150 or Baseus BSBA-02 does the same job more cleanly.
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In a car with an old radio, an FM transmitter is the simplest way to get phone music into the speakers: the device goes into the cigarette lighter socket, you pick a free radio frequency and pair the phone over Bluetooth. Most models double as a car charger, often with USB-C PD and fast charging — the Forever and XO ones deliver up to 30 W. If the car has an AUX input, a Bluetooth receiver such as the Hoco E150 or Baseus BSBA-02 does the same job more cleanly.