New all-sweeper is added the fully closed cab on the basis of the original 1550 and 1750, emitting extremely high levels of mist spray to reduce dust when cleaning, so that it applies more broadly. I. CHARACTERISTICS: 1. It adopts 48V300A battery packs used as the driving force of continuous use longer. 2. using completely closed cab to avoid the weather and noise interference 3. It takes the humanization design concept for the user to provide a safe and comfortable operating environment 4. The use of advanced flat-panel-style filter, filter a larger, more powerful vacuum. 5. Drive system on the home, increasing the volume of trash. 6. Liquid crystal display systems, vehicle status at a glance.