Tzumi 12oz. Self Heating Coffee Mug & Coaster

This warming mug features three adjustable temperature levels- 135 degrees, 140 degrees, or 145 degrees F. It has a built-in rechargeable battery that keeps your beverage perfectly warmed for up to 2 hours, or keep it on the charging coaster for prolonged heating. The price drops from $57.99 to just $35.99 when you add the code "FRIEND" during checkout. Log into your free Macy's Rewards account to get free shipping at $25. Otherwise, shipping adds $10.95 on orders below $49.