Feature: 1. LCD Display: This electric nail drill machine adopts LCD display, which can show power, forward and reverse, speed, pause, at a glance, more convenient for you to control the sanding speed. 2. 0‑45000 High Speed: This nail grinder has 0‑45000 high speed, providing constant power, continuous and stable speed, low loss and noise reduction, long service life, you can choose the speed according to your needs. 3. Back Clip Design: This electric nail file set is designed with a back clip, which makes it easy to carry and worry free on the go. The main unit has a back clip that can be clipped to the nail technician's pants. 4. Built In Lithium Ion Battery: This nail drill machine has a built in lithium ion battery with an 8 hour battery life, it can work for about 8 hours after fully charged, which is very convenient. 5. Excellent ABS Material: This rechargeable electric nail file machine is made of excellent ABS material, which is sturdy and abrasion resistant, not easy to be damaged, and has a long service life. Specification: Item Type: Nail Grinder Material: ABS Speed: 0-45000rpm Battery Type: Built In Lithium Ion Battery Battery Capacity: 2400mAh. Package List: 1 x Main Unit 1 x Grinding Pen 1 x Grinding Pen Stand 1 x USB Charging Cable 1 x Manual 1 x Connection Cable 6 x Grinding Bits 6 x Sanding Rings 1 x Storage Box