Widely Applicable: Compared with other external storage media, take CDs as an example, backup drive has obvious advantages in storage capacity, portability, etc., and the sound quality can also reach the level of CDs. Therefore, for modern car audio systems, using jump drives to play music is a better choice. The use of usb flashdrive is not limited by network connection, and data transmission and computer storage can be carried out without a network, which is particularly important in emergency situations or unstable network environments. LED indicator: The end of the flash drive usb is designed with an indicator. When the light is on, it indicates that the usb thumb drives has been connected to the power supply and can work normally. When the indicator light starts flashing, data is being read or written from the thumb drives 20 pack. In this case, do not remove the usb thumb drives. Otherwise, data integrity and the service life of the memory sticks are affected. This design can help you intuitively understand the working state of the photo memory stick, so as to better manage and use the memorias usb.