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 will 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. Overload Protection- Intelligent IC chip to protect your tool from overloading. Auto shut off will be activated when excessive pressure is detected to save motor and elongate service life. 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. Reciprocating action: 2.5±0.1mm Horizontal reciprocating tolerance: ±0.1mm Osilating tolerance(left/right): ±0.1mm Battery capacity: 280mAh Output current with load: 750mA max Output current without load: 250mA max Rated power: 2.8W Input voltage: 5V Output voltage: 3.7V Input current: 1A Charging time: 20±min Work duration with load: 100±min Max. pressure: 320g/360g/430g(3 speed) Sanding speed: 2800rpm/3100rpm/3600rpm(3 speed) Pen size: 178x21x18mm/7x0.8x0.7in Pen weight: 55g/1.9oz Packing List: 1 * Sanding pen 8 * Sanding head 12 * Sheet sanding paper 1 * Charing cable 1 * Storage box Colour:As Shown Material:plastic Package Contents: 1 set x pensander Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.