HIGH DEFINITION DISPLAY: The atomic clock has an upgraded large LCD screen, which is friendly to the elderly or visual impairment. The screen displays indoor outdoor temperature, alarm, time and date; 6 time zones are available, including EST, CST, MST, PST, AKT and HST; the time display comes with 12 / 24 hour format, while the temperature display unit is (°F) / °C for easy reading. DUAL INSTALLATION: LFF atomic wall clock has 2 installation methods, it includes a table stand and a wall mount to make it stand on the table or hang on the wall. It has simple buttons, easy to set. You can manually set the time zone, language, date, time, RCC reception, alarm clock and reception channel in sequence (Default channel 1).