Material and comfort: The body is made of engineering plastic for sturdiness, lightweight handling, and good insulation. The main handle uses nonslip soft rubber for a comfortable grip and reduced fatigue during extended use. Flexible sanding pads: Multihole pad system allows compatibility with a variety of abrasive discs, providing flexibility for different tasks and grit levels. Dust control system: Builtin vacuum, dust collection bag, and dust collection pipe work together to capture most dust during sanding, reducing mess and simplifying cleanup. Lighting for precision: LED light strips illuminate dark workspaces and help check sanding results. The lighting is soft and eyefriendly, allowing long sessions without eye strain. Adjustable performance: Variable speed with a locking switch enables operation from 1200 to 2500 rpm, supporting quick material removal or fine finishing as needed. Practical for drywall work: Specifically designed as a drywall vacuum sander to minimize dust while delivering consistent sanding results. Use scenarios: Finishing drywall joints on walls and ceilings, where dust control and adjustable speed improve efficiency and finish quality. Plaster repairs and patchwork in lowlight or areas, using the LED light and vacuum system to maintain a clean workspace. General sanding tasks in workshops or cabinets where different abrasive discs and controlled dust are advantageous.