Support FM full-frequency point transmission function 87.5-108.0MHZ Support dot-shaped large digital tube display Support U disk, TF card, AUX input, private answer, Bluetooth stereo music playback, ambience light display Support SIRI/GOOGLE Voice Assistant, MP3, WMA, WAV format music playback, navigation voice prompts, two mobile phones to connect Bluetooth Bluetooth answer, hang up, reject, redial phone and other functions Support Qualcomm® Quick Charge3.0 output 5V/3A max Automatic power-off memory function High-performance V5.0 BT chipset: Workable for Android and iOS BT V5.0, work stably, makes car music, phone communication clearly Enjoy music with dazzling light: Changeable multi-color Led light, melt the cool light into music, feel the super high mood Specification: Model: BC49 Rated working voltage: 12V-24V Limit working voltage: 8-27V USB output current: 5V1A+QC3.0 Operating Temperature: 0-60 degree Bluetooth version: V5.0+EDR Transmitting frequency: 87.5-108MHZ Charging identification: USB2 Supports Qualcomm® Quick Charge3.0 Protocol Music Format MP3, WMA, WAV, FLAC, APE Signal to Noise Ratio: >60dB Distortion: <0.1% Frequency response: 20Hz-15Khz Left and right channel separation degree: >60dB Bluetooth sound processing: A2DP (Advanced Audio Distribution Profile) function Bluetooth transmission distance: less than 10m Bluetooth microphone effective distance: 0.5-2m FM transmission frequency: 87.5-108.0MHZ Transmit FM mode: stereo digital PLL lock frequency Applicable mobile phone: universal Conditions of use: general model With car radio and cigarette lighter normal power supply