Wide application range: The variable-speed wall sander is designed for sanding and finishing drywall, ceilings, concrete, cement slurries, mud, paint, mortar, cement mortar walls, interior and exterior walls, adhesives, floor debris, and loose plaster for commercial and residential use. Efficient cement mortar polishing: Say goodbye to traditional manual plastering. The wall smoother is significantly more efficient than conventional plastering. It delivers good results, saves time, reduces fatigue, and works reliably in low-light environments. All-in-one electric smoothing tool: Replace manual methods with the powerful lithium-ion battery-powered trowel, allowing compaction, smoothing, polishing, and sludge extraction with a single machine. 6-speed adjustable with LED: The cement smoothing machine features a wired switch design and a 6-speed roller switch to select speeds according to wall type. The LED lighting helps save energy and enables efficient operation in dark environments. Use scenarios: - Renovating interior drywall in homes or offices: smooth joints, feather seams, and prepare surfaces for priming and painting. - Finishing cement plaster on interior or exterior walls during refurbishment: achieve fast, consistent results with less manual effort. - Working in dim basements or corners: LED lighting provides better visibility while you work on adhesive removal, surface smoothing, or plaster restoration.