Generic Travel Clip on Electronic Digital Compass Thermometer Clock LCD Display Built in Security clip, Compass, Thermometer, Clock Specification: 1) Based on technology of electronic bearing sensor with the functions of bearing direction, digital clock, digital thermometer and backlight 2) Auto calibration when turned on 3) Display direction with degree 4) Display temperature in Celsius and Fahrenheit 5) Display time in 24 hours mode 6) Instruction in the retail package 7) Use CR2032 battery