1. Portable speed adjustment, non-slip rubber, soft hand feel, comfortable grip 2. 10000/12000/15000rpm three speed adjustable 3. Wireless operation, easy to use 4. Efficient heat dissipation design, prolong working time 5. Application: metal cutting, grinding, engraving, etc. 6. Power supply voltage: 3.7V 7. Power: 12W 8. Battery capacity: 700mAh 9. Charging interface: USB 10. Size: about 15.88 x 2.9cm 11. Weight: about 103g
