Mobile power supplies, USB flash drives and Bluetooth speakers are common electronic products in modern life. They bring great convenience to users in terms of ease of use and functionality. A good packaging box can not only protect the product, but also increase the beauty and appeal of the product. The following is an introduction to the packaging boxes of these three products: Mobile power supply box: Mobile power supplies are often used to charge smartphones, tablets and other devices. Its portability and high charging capacity allow users to charge anytime and anywhere to solve the problem of insufficient batteries. In order to protect the mobile power supply, its size, stability and anti-fall performance need to be taken into consideration in the design of the packaging box. Generally speaking, the packaging box of mobile power supply is made of hard plastic or metal, and there will be suitable foam filling inside to prevent collision and falling. In addition, it is also important to have a lid that is easy to open and close so that users can take out the power bank when needed. U disk packaging box: As a portable storage device, U disk is widely used for file transmission and storage. In order to ensure the safety and convenience of the USB flash drive, its packaging box design should focus on the following aspects: First, due to the small size of the USB flash drive, the packaging box needs to be compact and strong to protect the USB flash drive from external impacts. Secondly, appropriate fixing devices should be used inside the packaging box to prevent the USB flash drive from moving or rubbing during transportation. Finally, the external design of the packaging box should be simple and beautiful, convenient for users to open and close, and should also be easy to carry. Bluetooth speaker packaging box: A Bluetooth speaker is a wireless audio device that can be connected to smartphones, tablets and other devices through Bluetooth technology to realize audio playback. The packaging box design of the Bluetooth speaker should take into account its size and visual effect. Generally speaking, the packaging box should match the size of the Bluetooth speaker and have suitable padding to protect the speaker from impact and damage. In addition, the design of the packaging box should be consistent with the appearance of the Bluetooth speaker, highlighting the high-end and quality feel of the product. Some patterns or instructions can be added to the packaging box to give users a more intuitive understanding of the product's functions and usage. All in all, mobile power supplies, USB flash drives and Bluetooth speakers are common electronic products in modern life. The design of their packaging boxes should focus on product protection and aesthetics to enhance user experience and product market competitiveness. 