Our micro-sander features a reciprocating mechanism that ensures a uniform and stable sanding process. This design allows the sanding pen to deliver consistent performance when working on detailed tasks, resulting in a smoother and more even finish. This USB fast-charging electric sanding pen comes with 8 high-quality sanding heads in various shapes and sizes for easy identification. A comprehensive selection of precision sanding heads and included sandpaper meets the needs of DIY craft enthusiasts. The versatile detail sander offers three-speed settings: 2800, 3100, and 3600 oscillations per minute. With a quick 20-minute charge, it provides efficient and continuous operation. An intelligent overload protection chip safeguards the motor by automatically shutting down the device under overload conditions, helping to prevent damage and extend the tool's lifespan. Compact and lightweight, this tool is ideal for use in tight spaces, small grinding tasks, polishing, and DIY crafts. The sanding heads are easily replaceable, allowing quick changes between tasks. Suitable for detailed work on wood, plastic, and metal materials. Product Name: Cordless Sanding Pen Reciprocating Stroke: 2.5 ± 0.1mm Reciprocating Horizontal Deviation: 0.1mm Battery Capacity: 280 mAh Left and Right Swing Deviation: 0.1mm Maximum Load Output Current: 750 mA Input Voltage: 5V Maximum No-Load Output Current: 250 mA Output Voltage: 3.7V Rated Power: 2.8W Input Current: 1A Charging Time: 20 minutes No-Load Continuous Use Time: 100 minutes Model: ES-A Sanding Speed: 2800/3100/3600 times per minute Usage: Suitable for small sanding, polishing, and DIY crafts Color: As Shown Material: Plastic Package Contents: 1 x Sander Body 8 x Sanding Heads 97 Pcs x Flat Self-Adhesive Sandpaper (180/280/400/600/800/1000 grit) 47 Pcs x Round Self-Adhesive Sandpaper (180/280/400/600/800/1000 grit) 1 x USB Power Cable 1 x Pair of Cut-Resistant Gloves 1 x Storage Box Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the photo and the actual product. Measurement may vary by ±1-3cm.