Pacific Automotive Network prepares the USB flash drive, inserts it into the interface at the bottom of the screen, reads the USB, the screen displays the song, find the "scan" option at the bottom of the screen, and then click it with your hand , which will switch to the next song.

Prepare the USB disk and insert it into the interface at the bottom of the screen. Read the USB and the screen will display the song. Find the "scan" option at the bottom of the screen and click it with your hand. will switch to the next song.

Common specifications of USB car chargers: input: 12~24VDC; output: 5VDC500mA; 5VDC700mA; 5VDC1000mA; 5VDC2000mA; after understanding its specifications, the output voltage is 5VDC, you can find that its current has multiple specifications. These different current specifications are convenient to use and can be applied to different electrical appliances. For example: In the past, mobile phones basically had a current of 500mA; but with the development of the times, mobile phones have appeared in business phones, game phones, music phones, Internet phones, etc., with high power.

So the current required by the charger is relatively large. These different specifications of USB car chargers allow users to choose the appropriate matching specifications. Although partially compatible systems can work with most USB hosts, unexpected results sometimes occur. Only by well understanding the USB specification requirements and load expectations can a better balance be achieved between specification compatibility and load complexity. Therefore, the USB car charger's conversion from interface to voltage, and current and power requirements match the needs of electrical appliances.

Sometimes the USB you purchased cannot charge electrical appliances, so there may be a matching problem. For example, whether the voltage of the electrical appliance used is the DC5V voltage of the USB car charger. If the voltage is correct, the appliance is probably more powerful. The USB car charger power may not match, and it may not charge, or it may not charge enough. At this time, it is necessary to confirm whether the charging current matches.