Note: Before using the product, please conduct a full cycle charging, which means that the battery is charged to less than 10%, then plugged in the charging power supply, and charged to more than 90%, which is regarded as a full cycle charging. If it is not used for a long time, please clean the interior and continue charging regularly to avoid battery damage and failure to start. *** How to adjusting grind parameters 1. Lock the grinding chamber You need to make sure the grinder is LOCKED first, otherwise you won't be able to adjust the grind settings (you won't hear the "ticks") 2. Adjust to "origin" Adjust the grind setting CLOCKWISE until it can't spin anymore, that's "ORIGIN" 3. Adjust grind settings to suit your needs By adjusting the grind settings COUNTER-CLOCKWISE, you can set over 45 ticks, giving you precise control over the particle size you need. **Suggestion: when it is at the "origin", adjust it at least 4-5 ticks counterclockwise. If the particle size is set too fine, the machine may stop working after more than ten seconds of grinding. Grind It By Your Way Grind coffee for any desired brewing method, from French press to espresso. Choose over 45 grind size settings, from coarse to ultra-fine. Security Lock The safety interlock system ensures the working safety of the crusher. Hold the machine and turn it. When you hear a click, it indicates that the machine has been successfully locked and the installation is complete. Easy to Clean Come with a brush for easy cleaning. You can rinse the grinding chamber with water. After rinsing, dry the grinding chamber before storing it. Note: The movement is not washable!!! HOW TO USE Lock the grinding chamber and adjust the grinding settings as needed.Open the grinding chamber and add the coffee beans (it is recommended to add 15g, no more than 20g).Lock the grinding chamber.Double click the power button to start the coffee grinder. (The light is green to indicate that it is working, if the light is red, it indicates that you need to charge the grinder)Wait for grinding.(About 2 min)After grinding, please use a brush to clean the electric coffee grinder. CONQUECO Smal Electric Burr Coffee Grinder CONQUECO Manual Coffee Grinder with External Numerical Setting CONQUECO Manual Coffee Grinder with 30 Adjustable Settings Add to Cart Add to Cart Buying Options Customer Reviews 3.4 out of 5 stars 177 3.9 out of 5 stars 47 4.7 out of 5 stars 31 Price $49.99$49.99 $49.99$49.99 — no data Drive Mode Electric Manual Manual Capacity 20g 40g 30g Burr SUS304 stainless steel High nitrogen steel 48mm stainless steel 38mm Adjustable Settings 50 150 30