Cordless Buffer Polisher USB Rechargeable 3 Speeds Adjustable Portable Electric Polishing Machine for Waxing Grinding Item Type: Cordless Buffer Polisher Material: ABS Motor Speed: 20000rpm Battery Capacity: 2000mAh 18650 Lithium Ion Battery (Shipped with Built in Battery) Input Voltage: USB 5V Output Voltage: 7.4V Maximum Power: 37W Working Discharge Time: 50‑100 Minutes Charging Time: 5 Hours Gear Speed: 3 Speeds 1000/1200/1600rpm Product Size: Approx. 168x160mm / 6.6x6.3in Polishing: Before Installing, Please Check Whether The Polishing Fleece Cover Is Dry and Make Sure There Is No Solid Particles Attached, If There Is, Please Clean It, Otherwise It Will Damage The Car; The Black Side Is Attached to The Polishing Disk Hook and Ring, The White Shaggy Fleece Side Is Used to Touch The Car Paint Surface for Polishing. Usage of Wax: Stain Remover for Stains, Abrasive Wax for Scratches, Polishing Wax for Polish. Application: Automobiles, Leather Goods, Flooring, Ceramics, Glass, Etc. Function of The Product: Grinding, Waxing, Polishing