1. High-speed brushless motor with a maximum speed of 15000 RPM 2. Piano touch key switch, various functions can be switched with one key 3. Aluminum alloy body with high concentricity grinding 4. Noise reduction and mute processing, the working noise is less than 30 decibels 5. Dual power hybrid drive, battery/plug switch, Built-in large-capacity, 1200 mAh lithium battery 6. Faster charging and wider application range, more stable charging with Micro interface 7. Thick-walled copper chuck for quick replacement of the grinding head 8. Smaller size and can be operated with one hand 9. Wider scope of application proficient in grinding and engraving 10. Package includes: 1 x Sanding Pen 11 x Grinding Head 1 x USB Cable
