BC71 Bluetooth 5.0 Car Adapter, QC3.0+USB-C 18W Fast Charger Wireless Bluetooth Car FM Transmitter, Car Bluetooth Adapter with 7 LED Backlit, Hands-Free Calls, 2 USB Ports+USB-C, Support TF Card

You can use the information on the digital screen to monitor vehicle health and equipment usage. Click the FM button to see the FM status. At the top of the FM screen is your vehicle voltage. When you adjust the volume, the volume value is displayed at the top. After the volume control is finished, the status of the voltage indicator is restored.
Specification:
Bluetooth compatible: V 1.2 / V 2.0 / V 2.1 / V 3.0 / V 4.0 / V 4.2 / V 5.0
Compatible Bluetooth protocol: A2DP / DSP
FM frequency range: 87.5 MHz- 108.0 MHz
Compatible audio format: MP3/WMA/WAV/FLAC
Bluetooth transmission distance: less than 10m
Effective distance of Bluetooth microphone: 0.5 ~2M
Fast charging port: Support QC 3.0 + PD18W protocol (5V / 3A, 9V / 2A, 12V / 1.5A, maximum 36W)
Audio output: Bluetooth, TF card (maximum 64 GB)
2 Playing Modes: Bluetooth / TF Card
Dual Screen LED Display
Automotive Voltage Detection
Crystal Clear Music Streaming
Hands-free Calls&Power-off memory
7 Color LED breathing light