Review on ☕️ The Ultimate FUTURELAB Temperature Control Coffee Mug: Multi-functional Travel Mug with 14400mAh Power Bank and Vacuum Insulated Hot Beverage Warmer - Your Perfect 10oz Companion! by Omar Gonzales

So this mug will definitely keep your coffee hot. Definitive. My biggest issue with this is that it leaked when I took it out and about a day later. It was a small leak but I had activated the padlock so I didn't know why it happened. Now I just make sure it's always upright. The fact that you can keep your drinks hot (not just warm, but HOT) is a plus, especially for those who work the night shift in the hospital. I definitely recommend something like this. It charges with this USB-C. Another downside is that it only holds 10 ounces and I survive on a ton of coffee, but that's fine. 10 ounces is like a cup of my coffee so that's not bad.