performance motor: 1390W motor with speed range 900 to 1200 RPM and 6 adjustable speed settings. This enables efficient polishing across different environments and surfaces, including indoor and outdoor walls, ceilings, and corners. Retractable extension pole: Lengths adjustable from 1.2 to 2.2 meters. Allows easy roof polishing from the ground, reducing the need for ladders or scaffolding and improving safety and convenience. Innovative floating sanding disc: The suspended sanding disc moves up and down to automatically level the wall during polishing. This helps prevent uneven surfaces and delivers a smooth finish without exposing the base material. Rotating sanding disc with LED light: Features a detachable sanding disc for easy access to tight corners and vertical walls, plus an integrated LED light strip for better visibility in lowlight conditions. Use scenarios: Interior wall and ceiling finishing in singlestory homes or rooms with limited access, where a groundlevel polisher is advantageous. Exterior wall smoothing and roofedge polishing from ground level, reducing ladder or scaffold requirements. Finishing in tight or vertical spaces such as corners, alcoves, garages, basements, or decorative details where enhanced visibility and maneuverability are needed.