Atomic Digital Clock Auto Set (no back light) - Using radio frequencies broadcast from NIST's , the clock will automatically set to the correct time. Automatically adjusts to Daylight Savings Time while set the DST on.Atomic Wall Clocks Battery Operated with Alarm - This digital calendar alarm day clock required 2 "AAA" long life batteries (nont Included) for operation, no redundant wires, easy to use. Turn on the alarm clock before going to bed, it will wake you up in the morning.Clock with Temperature and Humidity - Excellent wall clocks for living room, office, bathroom decor,etc. Help you monitor indoor temperature and humidity to avoid cold. 12/24 hours formats with clear Hours, Minutes and Seconds displayAtomic Clock Large Display for seniors - atomic clock has been designed with absolute simplicity in mind, you can also set it manually without any more ado. Wall clock or desk clock, large and clear digital display, easy to read.Digital Wall Clock with Accurate Date and Time - This digital calendar alarm day clock can help you keep track of dates, days of the week and times to avoid missing any important meetings, appointments or anniversaries, work well for work, study or travel schedule.size: 17 x 17 x 2cmMaterial: ABScolour: WhitePackage Contents:1 x Alarm clockOnly the above package content, other products are not included.Note: Light 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.