Walmart has 12-Oz Mainstays Warming Stainless Steel Mug w/ Warmer Coaster & Lid for $24.88. Choose free store pick up where stock permits, otherwise shipping is free w/ Walmart+ ( free trial available ) or on orders $35+.
Features:
- 12oz. Self-heating coffee mug
- Three adjustable temperature levels: 135°, 140°, or 145° F
- Built-in rechargeable battery keeps your beverage perfectly warmed or up to 2 hours, or keep it on the charging coaster for prolonged heating
- Auto-shutoff safety feature after 3 hours on charging coaster, or is mug is empty
- Anti-spill lid keeps drinks in your cup, not on your lap
- Perfect for coffee, tea, hot chocolate, and more
- Mug is safe to handwash with sturdy stainless-steel design
- Includes charging coaster, lid, and power adapter
- Specs: Input – 12V/1.5A; Power – 18W; Battery Capacity – 7.4V/2000mAh