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Compact black car FM transmitter with dual USB ports and digital display

ESTONE

ESTONE BC71 Car HD Radio Bluetooth 5.0 18W PD QC3.0 36W

SKU CH-DB2S-WFQC1 MPN BC71

Car HD Radio kit with Bluetooth 5.0, dual USB fast charging up to 36 W, and digital voltage display

  • FM usable sensitivity11.2 dBf
  • FM frequency response87.5 MHz-108.0 MHz
  • AM sensitivity21 uV
  • 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 enables stable wireless audio up to 10 m
  • Dual USB ports deliver 36 W total fast charging power
  • Digital display shows real-time vehicle voltage at a glance
  • Hands-free calls with clear microphone pickup from 0.5 to 2 m
  • FM tuner covers 87.5 to 108.0 MHz for broad station access

One-socket audio and charging hub

The ESTONE BC71 plugs into a single vehicle power outlet and adds Bluetooth 5.0 streaming, hands-free calling and dual fast-charge ports. It transmits audio over FM frequencies from 87.5 MHz to 108.0 MHz and plays MP3, WMA, WAV or FLAC files from a connected device. A digital voltage readout lets the driver monitor the electrical system at a glance.

Drivers who want cable-free sound and rapid charging

The adapter suits motorists who need wireless music, clear calls and up to 36 W of combined USB power without extra wiring. It does not serve buyers who require an auxiliary input, a DAB tuner or a dedicated amplifier output. Installers looking for a hard-wired integration kit should consider other solutions.

FM transmitter with dual USB fast charging

The defining spec is the 36 W total output split between a USB-A QC 18 W port and a USB-C PD 18 W port. This power budget decides whether the unit can fast-charge a phone and a tablet simultaneously while streaming audio.

How it compares

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

Price $19.99
Cheaper than about 67% of the 127 comparable items (median $27.99).

Specifications

Product
Brand nameESTONE
Model nameBC71
Product typeHD Radio Kits for Factory Stereo
Audio & video
FM frequency response87.5 MHz-108.0 MHz
More details
FM usable sensitivity11.2 dBf
AM sensitivity21 uV
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

Should I pick the USB-C PD 18W or the USB-A QC3.0 18W port for fastest charging?

Both ports deliver 18W maximum; use USB-C PD for phones that support Power Delivery and USB-A QC3.0 for Quick Charge devices — total combined output reaches 36W.

What does the 11.2 dBf FM sensitivity mean for daily reception?

The 11.2 dBf rating indicates the tuner can lock onto weaker stations, so you should hear more channels clearly in fringe areas.

How does Bluetooth 5.0 affect the 10 m wireless range and call quality?

Bluetooth 5.0 provides a stable link up to 10 m and the microphone works best at 0.5 to 2 m, giving clear hands-free calls inside the cabin.

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