- Material: ABS+quartz stone-2. Battery capacity: 1200mAh; Usage time: 180 minutes; Charging time: 2.5 hours-3. Motor idling: 10000 RPM-4. 3-speed speed regulation: 1400 ± 10%, 1600 ± 10%, 1900 ± 10%-5. Waterproof level: Life waterproof-6. Size; 158 * 65 * 36mm; weight; 157g-7. Accessories: USB charging cable, brush, fine, medium and coarse grinding head