Digital Audio Broadcasting (DABforshort) is the third generation of broadcasting after AM and FM traditional analog broadcasting - digital signal broadcasting, which provides sound close to CD quality, broadcasting and additional data with unlimited commercial opportunities. It has the functions of noise, anti-interference, anti-radio wave propagation and fading, suitable for high-speed mobile reception, etc., to ensure the quality of the received signal when fixed, carried and moving. Features: 1: Support FM full frequency point 87.5MHZ-108MHZ2: automatic power-off memory channel 3: support QC3.0 fast charge 4: support 2.4 inch LCD dot matrix display 5: support QPS modulation 6: frequency 177MHZ-240MHZ, CD quality output 7: support card music playback 8: support Bluetooth answer, rejection, hang-up, redial and other functions 9: support audio output technical parameters rated working voltage, 12V~24V limit working voltage, 9-32V output ,5V/1AUSB2 output QC3.0 working temperature< 60 degree music format MP3 support TF card capacity 1G-32GB Bluetooth version 4.2 + EDR language method QPSK frequency 177MHZ-240MHZ channel memory, support FM transmission frequency 87.5MHz-108MHz transmit effective distance 0.5-2MB effective distance, less than 10M