TWOMEOW Coffee Grinder, Adjustable Electric Grinder with Timing Knob, Coffee Bean Grinder and Spice Grinder with Removable Stainless Steel Bowl, Automatic Grinder for French Press and EspressoAdjustable time knob: There are seconds marks above the timing knob of our coffee grinder for 5 30s. You can control the precision of the coffee powder by adjusting the grinding time and make different flavors of coffee according to your preference Quieter grinder: The average noise of the coffee bean grinder is 63 dB, which is quieter than other coffee grinders. You can use our grinder both on quiet mornings and evenings. No need to worry about