Detailed specifications for this Electric Feet Sander Machine include: Condition - 100% brand new and high quality, Material - ABS, Weight - 250g, Package size - 16 x 13cm (L x W), Color - White, Charging mode - USB interface, Charging voltage - 5V, Charging current - 2A, Operation - Low speed is indicated by a green light, while high speed is indicated by a red light. When charging, a green light signals a full charge, while a red light indicates the machine is charging.