1,The size of the house is too large, the wall of the home is too thick or other problems make the WIFI signal very poor, resulting in playing games, watching movies, loading web pages slowly, and waiting for a long time. 2,Solving the problem of weak signal in the bathroom and the balcony. 3,Insert the position of the WIFI amplifier for XIAOMI, the WIFI signal can be expanded to twice. 4,No need to manually switch WIFI, the terminal device will automatically select the best source. 5,Excellent quality and durability. Features: 1. The size of the house is too large, the wall of the home is too thick or other problems make the WIFI signal very poor, resulting in playing games, watching movies, loading web pages slowly, and waiting for a long time. 2. Solving the problem of weak signal in the bathroom and the balcony. 3. Insert the position of the WIFI amplifier for XIAOMI, the WIFI signal can be expanded to twice. 4. No need to manually switch WIFI, the terminal device will automatically select the best source. 5. Excellent quality and durability. Specifications: Model: Wi-fi Amplifier Usage: When the amplifier is plugged into the USB port of the WIFI router for Xiaomi, the blue indicator lights up to automatically pair. Once paired, simply plug in a different USB port and you're ready to go. Package List: 1 x WIFI Amplifier Note: This amplifier only supports the router for Xiaomi. We do not recommend users with third-party routers. You can download the app by scanning the QR code on the package. The language of the application is Chinese and you should think carefully before buying. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.