The Ember Self-Heating Smart Mug is $50+ off before Mother’s Day

Coffee is what gets many of us through the workday, and the right smart mug can keep it hot for hours so you can stay focused without constantly getting up to reheat your cup. Fortunately, if you don’t own one, the 14 oz Cup of ember 2 Available now for $97.49 ($52 off) from Amazon, goaland cinder As part of Ember’s ongoing Mother’s Day sale. You can also purchase the smaller 10-ounce model for $84.47 ($46 off) from the same retailers (Amazon, goal, cinder).

Using the Ember app, the Mug 2 allows you to set the exact drinking temperature between 120 and 145 degrees Fahrenheit, which can be maintained for up to 90 minutes or all day using the included charging base. You don’t have to worry about draining the battery unnecessarily either, thanks to the auto sleep function, which turns off the smart cup when it’s empty or hasn’t been used for several hours.

The Smart Cup offers a fair amount of control beyond that as well. Through the Android/iOS app, you can also create and save preset temperatures for different drinks and set up notifications when your drink reaches your preferred temperature. Meanwhile, the customizable LED indicator on the coaster lets you quickly check heating and battery status at a glance.

As a bonus, the Ember Mug 2 is relatively easy to care for. It features a scratch-resistant coating to help prevent corrosion over time and carries an IPX7 water resistance rating, so it can be safely hand washed (just don’t put it in the dishwasher).