Wireless USB pen nail polisher has the characteristics of small size, high speed, high torque, lightweight and stability. It is easy to carry and can polish your nails anytime and anywhere, which is also conducive to family daily use. Features of JMD 103 USB Pen Nail Polisher Scientific electric nail drill pen, no hurt nail Speed Adjustment Small size, portable Wireless operation, powerful battery USB charging, support power banksters of JMD 103 Professional Electric Nail Drill Detail of JMD 103 USB Pen Nail Polisher Exciting new features: support wireless use and USB charging, Fast and safe charging, strong battery life. Wireless grinder: the maximum speed of 1500RPM, the new USB wireless grinder provides the following 4 functions: 1. on/off, 2. forward/reverse The wireless grinder is made of high-quality aluminum materials. This product uses lithium batteries, high-quality motors run without noise, stylish in shape, good hand feeling, so easy to replace the nail drill bits, safe and not hurting hands Specification of JMD 103 USB pen nail polisher