FM modulator for car BC40Q (QC 3.0, micro SD, hands-free)

FM wave modulator with fast charging function. This modulator is designed to transmit MP3/WMA format audio files from a USB flash drive, MP3 player or smart device to the car radio via FM radio waves.
Features:
Music streaming via FM radio to your car radio.
This product has two USB output ports. Two devices can be charged at the same time.
Charging via USB port: 5V/1A.
Fast charging via USB Qualcomm 3.0 port 5V/3A.
Hands-free functions: answer, hold, reject, redial.
Supports 2 mobile phone connections at the same time.
Car battery voltage detection.
Automatic memory function when power off.
Echo and noise cancellation technology.
Voice navigation supported.
LED screen. Microphone.
Available sources for music:
USB flash drive.
Micro SD card (up to 32GB).
"U-disk" storage capacity (up to 32GB).
Bluetooth version: 5.0+EDR.
Technical data:
Nominal operating voltage: 12-24V.
Limit operating voltage: 8-32V.
USB1 output: 5V / 1A.
USB2 output: Qualcomm® Quick Charge3.0, maximum allowable output parameters: 5V / 3A.
Noise suppression technology (DSP and CVC).
Signal-to-noise ratio: gt; 60 dB.
Accuracy of displayed battery voltage: +/- error1V.
FM frequency range: 87.5-108.0 MHz.
Effective distance from the microphone: 0.5-2 m.
Bluetooth audio processing: A2PD support.
Supports formats: MP3 / WMA / WAV / FLAC / APE.
Transmission distance: 2m.