Rated working voltage 12V-24V Extreme working voltage 8-27V USB output dual USB output 5V/3.1A Working temperature 0-60 degrees Voltage detection accuracy +_1V Signal to noise ratio >60dB Distortion <0.1% Frequency response 20Hz-15Khz Left and right channel separation degree >60dB Bluetooth version Version 4.2 Bluetooth sound processing A2DP (Advance Audio Distribution Profile) function Bluetooth transmission distance is less than 10M Bluetooth microphone effective distance 0.5-2M FM transmission frequency 87.5-108.0MHZ

Features:1: Suitable for all types of vehicles.
2: Digital tube display.
3: Dual USB charging port maximum output 5V/3.1A
4: Support for charging Apple phones and Apple tablets
5: Support stereo FM transmission technology