[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 start 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 14F to 140F (-10C to 60C) 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.