[WWVB Auto Time Synchronization] Equipped with an internal receiver, this clock automatically syncs with the WWVB signal from 1:00-5:00 am daily to accurate time and date. It supports four time zones: EST, , MST, . If your location falls outside these zones, manual adjustments are necessary. [Automatic Daylight Saving Adjustment] This clock simplifies time management with its automatic feature, advancing the time by one hour at the of daylight saving. Verify that your region observes to utilize this function effectively. [Indoor Temperature & Humidity Tracking] Stay informed about your indoor climate with this clock's precise temperature range of 14°F to 140°F (-10°C to 60°C) and humidity range of 20% to 95% RH. It features an Indicator with three levels: COMFORT, DRY, and WET, for optimal environmental awareness. [Customizable Alarm with Convenient Snooze] Set up the programmable alarm to suit your schedule, complemented by a 5-minute snooze function for those extra minutes of rest. Exiting snooze is quick and easy-simply any button except the Snooze/Light. [Flexible and User-Friendly Design] Featuring a 4.9 inch HD display with a 5-second backlight, this versatile clock offers both 12H/24H formats and temperature units in °F or °C. It can be placed on a desktop or mounted on a wall and is battery-operated for easy placement anywhere (not includes 3 x AAA batteries). Color:White Material:ABS Package Contents: 1 * Alarm clock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.