Our micro-sander has a reciprocating mechanism, which makes the sanding process more uniform and stable. This movement ensures that the sanding pen can continue to provide stable sanding when processing details, resulting in a smoother and more uniform sanding effectThis USB fast-charging electric sanding pen is equipped with 8 specifications of high-quality sanding heads The size and shape are easy to identify. Various shapes of sanding heads and sandpaper of various precisions meet the needs of DIY craft enthusiasts,The versatile detail sander is ,has three-speed adjustment, 2800/3100/3600 times per minute,The charging time is about 20 minutes, can complete the work quickly and smoothlyIntelligent overload chip protects motor at all times. The tool automatically stops when it is overloaded to prevent motor loss and extend service lifeThe small for tight spaces, small grinding, polishing, DIY crafts, and the drill bit can be quickly replaced. Whether it is for the detail processing of wood, plastic or metal materials can be usedProduct name: Cordless sanding penReciprocating stroke: 2.50.1mmReciprocating horizontal deviation: 0.1mmBattery specification: 280 mAhLeft and right swing deviation: 0.1mmMaximum load output current: 750 mAInput voltage: 5VMaximum no-load output current: 250 mAOutput voltage: 3.7VRated power: 2.8WInput current: 1ACharging time: 20 minutesNo-load continuous use time: 100 minutesModel: ES-ASanding speed: 2800/3100/3600 times/minutesUse: Suitable for small sanding, polishing, DIY craftsColour:As ShownMaterial:plasticPackage Contents:1 x Sander Body8 x Sanding Heads97 Pcs x Flat Self-Adhesive Sandpaper: 180/280/400/600/800/100047Pcs x Round Self-Adhesive Sandpaper: 180/280/400/600/800/10001 x USB Power Cable1 x Cut- Gloves1 x Storage BoxOnly 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.