Finally, a cover! Shortly after getting small mug for a gift, I realized that I needed something to cover my mug while not in use. Dust and cat hair would get in the mug from sitting on my desk for any length of time. I 3D printed a dust cover for when it wasn't in use. It worked nicely. I printed a few more to provide to people that I had given these mugs to as gifts. Finally, a functional lid that keeps stuff out while not in use. It keeps from minor spills due to bumping the mug and helps keep coffee/tea from evaporating while sitting in the mug (with the slider closed). It's a nice addition and easy to clean. It's unfortunate that they have to be bought separately. I'm not sure if Ember is finding that they missed the mark on some things prior to launching their fancy mugs, or if they were thinking ahead about extending the line as people purchased these mugs. I will say this, these mugs are not a gimmick! Though, I have found the desk chargers for the mugs need work. After a while, once of the charging pins gets stuck in the down position causing charging failure. Thus, the need to purchase a replacement charger. These mugs are a bit of a commitment. Deep pockets are helpful once you purchase just the mug!
Sliding lid is very effective. Liquid does not leak once applied. But the sliding tab must be open so that liquid can seep on top when 10oz of liquid is poured into cup before applying the lid. Nice accessory!!!
I love my ember mug and was excited when they came out with a lid. It works perfectly and now there’s no spilling when I take my coffee to work. It also helps the coffee stay at temp so my mug last longer off the charging saucer. Happy with the purchase