1.Compact and : This uninterruptible power supply is designed to be small and easy to carry, and can be easily placed in your bag or car, ensuring that you can power your devices on the go without increasing the size of your luggage 2.Lasting Power Supply: Use UPS power supply to extend the battery life of Wi Fi devices, ensure the normal running of your network router, maintain a stable Internet connection even during power failure, and provide seamless connection 3.Wide Compatibility: This power supply is compatible with 95% of mainstream routers and optical modem on the market, support charging and uninterrupted use of various digital products, including security camera, MP3 player, and MP4 device 4.Secure and Practical: The backup UPS has a flame retardant shell, secure and lasting; The replaceable battery design allows you to replace the battery at any time, providing uninterrupted supply for the device