Overload Protection- Intelligent IC chip to protect your tool from overloading. Auto shut off be activated when excessive pressure is detected to save motor and elongate service life. 8 Multifunctional Sanding Heads: Detail sander tool with 8 sading heads: Arc, Right anglr, Spherical, Sledge, Square, Rectangular, Slim and Triangular sanidng head for differnent needs, and ennsures truely stock removal. 3 Speed Adjustable: Mini sander pen with one click operation and 3 speed adjustable:2800rpm/3100rpm/3600rpm. There colorful light effect after acticated and you can DIY reset your own light effect of each speed. Complete Accessories: Pen sander with a storage box and self adhesive sandper for flat sanding head #180/280/400/600/800/1000/1200 (97pcs)each mesh Pre-cut, Self adhesive sandper for rounded sanding head #180/280/400/600/800/1000/1200 (47pcs)each mesh Pre-cut. Long Lasting Use- Requires approximately 20 minutes for charging, with real time display for battery level, 100 minutes of duration time is available when fully charged and with empty loading., Manufacturer: Vjsujehgy