La Crosse Technology WT-5431U Projection Alarm Clock with Remote Temperature, Projection and arm rotate for proper viewing, Automatic focus of projection, Atomic time and date with manual setting, Automatically updates for Daylight Saving Time, -21.8°F to 156.2°F Wireless outdoor temperature range, 32°F to 122°F Indoor temperature range: 12/24 hour time display: Perpetual calendar: Time zone setting: Dual Alarm with adjustable snooze: EL backlight: Free standing (WT 5431U WT5431U)