How to Use 1. Wipe the water at the bottom of the cup before use, do not immerse the unit, cord, or plug in water or other liquid. 2. Simply plug the cord, tap the switch to turn it on. 3.Place cup in the middle of te heating plate,and the unit starts to work. 4. Choose working modes: Touch the power button once - Light turns Red, the temperature of drinks to 160-180℉ (70-80°C); Touch the power button twice - Light turns Purple, the temperature of drinks to 130-150℉ (55-65°C); Touch the power button the third time - Light turns Blue, the temerature of drinks to 105-120℉ (55-65°C); 5. Touch the power button for two seconds to turns off the unit. 6. Auto the power button the warmer wil auto shut off after 4 hours using for the safe use. Specifications: Product Name: Coffee Mug Warmer Type: DS1287 Voltage: AC 120V 60HZ Power: 50W Sizer: 15*15*2.8cm [5.9*5.9*1.1inch] Common Troubleshooting [Q&A] Q: Unable to turn on? A: Please try to unplug, wait for a while and then replug,turn on the power button. Q: How long does take to heat the drink? A: This product is mainly used for keeping drinks warm, rather than heat up beverage quickly, so it usually takes about half an hour to an hour or even longer to heat cold drinks. Q: Do I need to wait till 4 hours to automaticall turn coffee warmer off? A: No, you can always turn it off manually. Best Customer Services from us: We truly appreciate for your trust and support. We are 100% dedicated to your complete satisfaction. If you have any questions or suggestions on our products, please feel free to contact us.We will reply within 12 hours. Start to Enjoy your Life! Wish you have a happy life every day!