Ikea Lottorp White Multi-function Digital Thermometer Temperature Alarm Timer Clock Brilliant Design: Rotatable Digital Clock to change the function :Thermometer, Alarm, Timer or Calendar with Time Rotate the clock to change background light (red, sky blue, dark blue and green) Easy to display and Beep sound when the time is up Great for Bedding, Cooking, Kid Feeding, Sport or Home Decoration etc 2 x AAA 1.5V Batteries are required. Package not included batteries