FM transmitter extra digital BC72 with 3.5mm AUX input and USB charging

FM transmitter extra digital BC72 connects your phone or portable audio source to the car radio and provides fast USB charging. The device transmits music from a smart device to the vehicle’s FM radio via Bluetooth A2DP or a 3.5 mm AUX input, while the built-in USB Type-C and USB Type-A ports supply power to two devices simultaneously. The unit also supports hands-free calling, shows status on an LED display and stores playback position if power is interrupted.

Advantages

The BC72 offers dual fast-charging outputs (PD3.0 30W via USB‑C and QC3.0 18W via USB‑A), Bluetooth 5.0 with A2DP for wireless audio streaming, and an advanced decoding chip that supports MP3, WMA, WAV and FLAC formats. DSP processing improves sound clarity and an automatic maximum-volume setting simplifies operation. A rotary knob and FM control button provide easy frequency selection and the ability to disable FM transmission while keeping charging active. Safety protections include overvoltage, short-circuit and overheating safeguards.

Suitable for

• Playing music from smartphones and MP3 players through a car radio
• Charging two devices simultaneously while driving
• Hands-free phone calls in vehicles without built-in Bluetooth
• Using external audio sources via 3.5 mm AUX input

Key specifications

• Rated voltage: 12–24 V DC
• Bluetooth version: 5.0; BT profiles: A2DP, AVRCP, HFP, HSP
• USB Type-C output: PD3.0, max 30 W
• USB Type-A output: QC3.0, max 18 W
• FM frequency range: 87.5–108 MHz; FM range: >3 m
• Supported audio formats: MP3, WMA, WAV, FLAC
• Signal-to-noise ratio: >60 dB; BT transmission range: 10 m
• Effective microphone range: 0.5–2 m; Operating temperature: 0–50 °C

How to use

Plug the BC72 into the vehicle’s 12–24 V cigarette lighter socket. Pair your phone with the transmitter via Bluetooth 5.0 or connect an external player using the 3.5 mm AUX input. Tune your car radio to an unused FM frequency and set the same frequency on the transmitter using the rotary knob. Play audio on your source device; playback will stream to the car speakers. Use the rotary knob to change tracks and the FM control button to disable FM transmission while keeping charging active. Answer and control calls with the hands-free buttons on the unit.

Usage recommendations

For the best sound quality, choose an FM frequency that is as far as possible from the frequency of any local radio station. Ensure the transmitter is securely seated in the socket and keep devices within the Bluetooth range for stable audio streaming.