1. Positive/reverse design, convenient for users to rotate with left and right hands 2. Low noise, high-speed grinding design with two speeds 3. Disc scrub head, polish the edge of nails, trim nails 4. Cylindrical fire stone, trim the nail roots, polish the nail surface 5. Soft bristles, brush the nail surface, for polishing 6. Cone fire stone, aim at the edge of the nail, trim the edge 7. Cone head, polished hard and thick hand calluses, removes the nail edges and base glue from dead skin 8. Rated power: 3W 9. Rated current: about 1A 10. Rated voltage: DC 5V 11. Charging time: about 60 minutes 12. Use time: about 2 hours 13. Power supply mode: USB power supply 14. Battery capacity: 3.7 V 130MAH 15. The body has a light, so it can be used in dark places 16. Frosted decorative stickers are used on the back of the fuselage 17. Functions: manicure, nail art, nail removal, exfoliation, calluses removal 18. Material: ABS+UV 19. Product accessories: host, cone head, cylindrical fire stone, cone fire stone, soft hair head, manual, USB data cable 20. Size: about 15 x 2 x 2CM 21. Weight: about 45.6G