LOCOMOLIFE Touch Sensor LED Heart Thermometer Temperature Indicator Insulated Vacuum Bottle Cup Mug Warm Warmer KTW024 It is not only a thermal cup but it tells you the temperature also! It shows 3 different colors when touched by user's hand and each represents cool, warm and hot with blue, orange and red color indicator. You can write a message at the heart shaped bottom to express your love and care Size: 8.1 x 2.8 x 2.8" / 20.6 x 7 x 7cm Power: 2 x AA battery (not included)