The cost of a coffee mug varies widely, mainly based on the mug’s size, material, and extra accessories or functions. Basic travel mugs and tumblers typically cost anywhere between $10 and $20 on Walmart, with some costing as little as $8. On the other end of the spectrum, large self-heating mugs and tumblers can have a price tag of well over $100, with a few coming in at nearly $200.   At Tzumi, we fully believe that you deserve a mug that’s a proper blend of both innovation and affordability, which is where the ionmug and Charging Coaster comes in. This 12 oz. self-heating mug holds the chosen temperature for up to 3 hours, and with an auto-shutoff feature, an anti-spill lid, and a rechargeable battery, it’s the perfect choice for enjoying warm and tasty beverages throughout the whole day. It gives you comfort and convenience in a compact and easy-to-use design, without breaking the bank.