YouFs-A is an Android application developed by pengxianyun for controlling electric scooters, lithium trams, bicycles, and other controllers. With this app, users can easily connect their mobile phones to their electric scooters via Bluetooth, allowing them to access a wealth of information about their vehicle.

Once the connection is established, users can remotely lock their vehicle, track its location, and check the speed, power, light condition, gear, total mileage, and riding time. The app also provides information about the battery voltage and temperature, allowing users to monitor the health of their vehicle's battery. Additionally, users have the ability to customize the speed of each gear through the app's settings.

One of the standout features of YouFs-A is its fault self-inspection functionality, which allows users to easily check the fault status of their vehicle. This feature is particularly useful for maintenance purposes, as it enables users to identify and address any issues with their electric scooter quickly.