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Compact car FM transmitter with dual USB ports and colourful LED backlighting

LUOM

LUOM BC71 Car HD Radio Bluetooth 5.0 36W QC3.0 PD 18W 64G TF

SKU CH-85VW-4V556 MPN BC71

Adds Bluetooth 5.0 streaming, hands-free calls and 64 GB TF-card playback to any car stereo while fast-charging two devices at 36 W total via USB-A QC 3.0 and USB-C PD 18 W

  • FM frequency response87.5 MHz-108.0 MHz
  • AM stereo separationBluetooth V5.0; Support dual display digital tube, real-time
  • Product typeHD Radio Kits for Factory Stereo
  • Highlights*PD 18 W+QC3.0 Fast Car Charging: PD18 W and QC3.0 port (5 V
  • Bluetooth 5.0 delivers stable streaming
  • PD 18 W and QC 3.0 charge two devices at 36 W max
  • 64 GB TF card plays lossless WAV and FLAC
  • Dual digital display shows battery voltage in real time
  • Hands-free calls with voice-assistant button keep focus on driving

Product Identity

The LUOM BC71 is a new car HD radio transmitter that adds Bluetooth 5.0 audio streaming and hands-free calling to a factory stereo via FM frequencies between 87.5 MHz and 108.0 MHz. It also delivers up to 36 W of combined charging power through a USB-A QC 18 W port and a USB-C PD 18 W port.

Who It Suits And Who It Does Not

Drivers who want wireless music playback, lossless audio from a TF card up to 64 G, and fast charging for two devices at once will find this unit fits the need. Buyers whose vehicle stereo already has native Bluetooth or a direct auxiliary input, or who require a wired digital audio connection, should look at other solutions.

Deciding Specification

The transmitter operates on the standard FM band from 87.5 MHz to 108.0 MHz, so the receiver in the vehicle must be able to tune across that range for the adapter to work.

How it compares

Measured against everything we stock in HD Radio Tuners & FM Transmitters, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 80% of the 127 comparable items (median $27.99).

Specifications

Product
Brand nameLUOM
Model nameBC71
Product typeHD Radio Kits for Factory Stereo
Audio & video
FM frequency response87.5 MHz-108.0 MHz
More details
AM stereo separationBluetooth V5.0;
Support dual display digital tube, real-time detection and display of battery voltage;
USB A QC 18 W and USB Type-C PD 18 W output ports;
Colorful LED backlights;
Support waking up the mobile phone voice assistant via button;
Stereo FM transmission technology;
Support TF card playback, support WAV/FLAC and other lossless music;
Support music, volume, and frequency power-off memory function;
Support Bluetooth automatic re-pairing;
Bluetooth supports A2DP, AVRCP, HFP, HSP;
Support private answering and switching;
Bluetooth stereo music DSP technology;
Support turning on/o

Questions about this item

How long will the 64G TF card slot remain reliable for daily music playback?

The slot supports cards up to 64G and handles MP3, WMA and WAV files; no moving parts are involved so the connector itself does not wear out under normal use.

What limits continuous operation when two phones are fast-charging at 36W total?

The combined 36W output (18W PD plus 18W QC3.0) is the hard ceiling; once both ports draw their maximum the adapter cannot deliver more current.

How much heat or fan noise appears when the unit runs all day with Bluetooth 5.0 streaming and dual charging?

The device has no fan; heat is dissipated passively through the chassis, and the LED backlight can be switched off to reduce thermal load during extended sessions.

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