[3-Temperature Settings]From this winter,say goodbye to cold coffee and tea- coffee mug has 3 temperature settings, you can the temperature by pressing the power button keeps the drinks temperature to 131/55 or 149/65 or 167/75. And is equipped with visual temperature, can display temperature numbers,allows you to easily adjust the cup for the cooling speed of hot beverage, revent curdling, your overall beverage experience. [Concave Plate Design]The heating plate of the coffee mug is designed with a concave tray with a diameter of 3 inches, which can prevent the cup from accidentally slipping and overturning. Suitable for most stainless steel cup, mug, milk box, glass cups and etc, use a thin-walled, flat, or slightly concave-bottomed mug for the results.(Please use 5V=2A charging port for power supply). [One Key Operation]It only needs a button to operates power and switch the temperature. Press the button to turn on, the default temperature is 131/55, the temperature rises by 50/10 each time you press it, the highest temperature is 167/75, then press it again to shut down manually, easy to use, perfect to desk, night table kitchen or living room side table, suitable for heating coffee, milk, tea, water or your candle wax. [Simplicity & ]USB coffee mug , simple appearance, design, made of high quality ABS materials that heat evenly, rapid heating and safe durable, small and light, 200g weight can easy to take anywhere. Use gift box packaging, exquisite workmanship and with instructions, is the perfect gift for any occasion,pass your love and concern to your members and . Voltage: DC5V Material: ABS colour: blue Package Contents: 1 x heating coaster 1 x manual in and English 1 x USBinterface cable Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.