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Black Bluetooth 5.4 FM transmitter with dual USB ports and rotating knob

Syncwire SW-XC653 Bluetooth 5.4 FM Transmitter 38W PD QC3.0 Car Adapter

SKU CH-48QQ-1D1XE

Bluetooth 5.4 FM transmitter with 38 W PD and QC 3.0 dual USB charging, hands-free calling and Hi-Fi bass

  • Screen size38 W
  • Labor warranty1 Year
  • Adjustable subsonic filterFast Charging, Advanced Bluetooth 5.4 Technology, Support Si
  • Cable typeBluetooth, USB
  • Audio channelsStereo, FM Transmission
  • Electrical rating38 W, 7.6 V DC
  • Dual fast charging up to 38 W total via PD 3.0 and QC 3.0
  • Bluetooth 5.4 gives stable FM streaming and hands-free calls
  • Bass boost button and blue LED backlight enhance audio enjoyment
  • Built-in CVC noise suppression for clearer voice calls
  • Works with 12 V–24 V vehicles and most Bluetooth devices

Bluetooth 5.4 FM Transmitter for Car

The Syncwire SW-XC653 plugs into a 12V-24V socket to add wireless audio streaming and hands-free calling to vehicles without built-in Bluetooth. It pairs with phones, tablets and MP3 players while dual USB ports charge two devices at once. A rotating knob controls volume and frequency selection.

38W PD & QC 3.0 Charging Upgrade

Replaces older transmitters limited to 5W or single-port charging by delivering up to 38W total through a 20W Type-C PD 3.0 port and a QC 3.0 port. The jump is worth it when you need fast charging for modern phones and tablets during the same trip.

Simple Plug-and-Play Install

Insert the adapter, tune the car radio to an unused FM frequency, match the transmitter to that frequency and pair via Bluetooth 5.4. Static interference usually means the chosen frequency is crowded; switch to another clear channel and repeat the pairing steps.

How it compares

Measured against everything we stock in Car Audio Accessories & Wiring, at today’s prices. Recalculated every night.

Price $42.99
Pricier than about 71% of the 2,768 comparable items (median $21.99).

Specifications

Product
Brand nameScosche
Model nameSW-XC653
Product typeCar
Product colorBlack
Display
Screen size38 W
Audio & video
Audio channelsStereo, FM Transmission
Audio outputsBluetooth
Ports & slots
Cable typeBluetooth, USB
Power
Electrical rating38 W, 7.6 V DC
Power detailsCorded Electric
Rated voltage7.6 V DC
Size & build
Product weight0.068 kg
Head unit sizeSingle DIN
Compatibility
Compatible withCellular Phones, MP3 Player
In the box
Included hardwareNo
More details
Adjustable subsonic filterFast Charging, Advanced Bluetooth 5.4 Technology, Support Siri/Google Assistant, Hi-Fi Bass Music
Cut out diameterSmall
Inner hole diameter for wireSmall
Number of links to amplifier2
Team affiliation1 Piece

Questions about this item

Does the transmitter plug directly into a 12V or 24V cigarette-lighter socket?

Yes, it fits standard 12V-24V vehicle power sockets and draws up to 38W total for dual-port charging.

How do I pair my phone and set the FM frequency on this unit?

Enable Bluetooth 5.4 on the phone, select the adapter, then rotate the knob to match a clear FM station on the car radio.

Will the blue LED backlight or bass button wear out with daily use?

The LED and bass-enhancement key are solid-state with no user-replaceable parts; normal use requires no scheduled maintenance.

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