The product to meet the needs of the rental market, fully tap the user's operating habits, so that the function at a glance, so that the operation is no longer complicated. The function icons on the interface are simple and flat, and all functions are presented with symbols, which is easier to understand. The front of the product has an operating light strip. With the flashing of the light and the change of color, the user can know the status of the machine and bring a more friendly experience to the user.