It's a Samll Beverage Warmer for Home/Office/School/Coffee Shop--Compact to Take Mug Warmer for Desk with Auto On/Off--No Mug Come, Powered by 110v Cord Attention:Take Cup Away or Unplug the Cord If You Are Leaving, Or it Will Work All the Time Auto On--Plug the Cord, Put Cup on and it Starts WorkAuto Off--Take Cup Away and it Stops Work Automatically ADVICE: Use Flat Bottom Mug for Better Effections, Put On Cup Lid for Better Using Warm Your Lover's Heart, Leaves No Doubt in Her/His Mind of How You Feel! It's a Great Birthday, Mother's Day, Father's Day, Thanksgiving, Christmas Gift for Your Families/Friends/Lovers