Rated operating voltage, 12V-24V ultimate operating voltage, 8-27V output, dual USB output 5V/3.1A operating temperature, 0-60 degree voltage detection accuracy, +_1V signal-to-noise ratio>60dB resistance60dB Bluetooth version, 5.0 version Bluetooth sound processing, A2DP (Advanced Audio Distribution Profile) function Bluetooth transmission distance, less than the effective distance of the Bluetooth microphone, 0.5-2MFM transmission frequency, 87.5-108.0 MHz Features: 1: Suitable for all types of vehicles. 2: Digital tube display. 3: The maximum total output of dual USB charging ports is 5V/3.1A. 4: Support iPhone and Apple tablet charging. 5: Support stereo FM transmission technology. 6: Support U disk memory card lossless music playback (FLAC/WAV/APE) (maximum 32GB). 7: Support MP3 music format files. 8: Automatic power-off memory function. 9: Draw power directly from the cigarette lighter. 10: Bluetooth V5.0. 11: Bluetooth handheld for free calls. 12: Support Bluetooth stereo music DSP technology. 13: Battery voltage detection Package includes: 1 car Bluetooth MP3 player Note: 1. Please allow some errors due to manual measurement. Please make sure you don't mind before bidding. 2. Due to different monitors, colors may vary, please understand. Hello, please pay attention to your shipping address when purchasing products. If your delivery information (such as name, street, house number, doorbell/box without name, etc.) is incorrect, the order will not be delivered correctly. )