Helio Mug Warmer

Auto-Shut Off Cozy Coaster uses smart technology to power off the device after cup is removed from the coaster.   3 Different Heat Settings The coaster has three different temperatures settings raging from 70 ℃ / 158 °F -110℃ / 230 °F.   Safest Cup Warmer The warmer uses a 5V voltage, while other companies use 220V. Anything under 24V is considered extra safe.   P1 Heating - Heat source emits heat from all directions, high thermal conductivity.    Works with porcelain cups, glass cups, and metal cups.