USB Rechargeable Coffee Grinder Mill Portable Electric Coffee Bean Pepper Grinding Device Household Kitchen Tool Accessories|Electric Coffee Grinders USB Rechargeable Coffee Grinder Mill Portable Electric Coffee Bean Pepper Grinding Device Household Kitchen Tool Accessories Feature: USB charging, portable, 5 speed control. Cleaning: Each part of the grinder can be cleaned. Environmental protection, no pollution, wear resistance, corrosion resistance. Grind immediately, taste better. Easy to use and operate. Scope of application: Coffee beans, pepper. Specification: Material: Stainless steel + acrylic Color: As shown Size: 7.8x21.5cm/3.07x8.46in Voltage: 3.7V, built-in battery, USB: 5V/1A Battery capacity: 1200mAh, power: 3W Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you 2. Please allow 1-3cm measuring deviation due to manual measurement.