Large Screen Display: - 5.5inch High Resolution Large Digital Alarm Clock clearly spells out the Time, Date, Temp. HD bright White LED digits it's clear enough to see the time in the distance. Alarm & Snooze : - This alarm clock has 8 ringtones to choose from,pick your favorite sound among 8 alarm sound .Before the alarm stops itself, pressed the snooze button to get an extra 9 minute nap.(Note:The Snooze Time cannot be set manually) Adjustable Alarm Brightness & Backlight Function: - 6 Brightness Levels from 5% to 100%, no need to worry about the brightness is too high to affect your sleep or too dark to read the time.When using only the battery, after Ten Seconds, the screen brightness turns off, press any button, the screen wil .If you want to the screen always Keep Brightness,please use the USB charge. 12/24Hr & Adjustable Alarm Volume : - 12/24H,You can decide whether to use the official time or 12H Am/Pm according to your habits;Adjustable Alarm Volume with 6 sounds can be set from 30-90 DP as person preference. Easy operate: - It is an easy operated alarm clock with features large clear display, 12-hour / 24-hour, indoor temperature, easy for kids, seniors and the elderly, experience zero stress when setting the time and alarm. Colour:black Material:ABS Package Contents: 1 x Alarm clock 1 x USB cable Only 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.