ANG&reg; Digital Alarm Clock with 3 Alarm groups,Travel Alarm Clock and Home Alarm Clock with Snooze Function ,Optional Weekday Alarm Mode and LCD Display Light-activated Sensor 1. 3 alarm time groups with snooze function-Perfect for school ,work and childmind. 2. Perfect size -Place it on nightstand as home alarm clock and stash it in your pocket as travel alarm clock. 3. Optional Weekday Alarm -It keeps you away from these tedious things such as turning on /off the alarm clock everyday. 4. Optional Sensor Light Function -You can see what time it is and doesn't make the room so dark.If you think the light is a bit bright, you may also turn off the sensor, the screen is lighting only when you press "SNOOZE/LIGHT" button at the top. 5. Multifunction-Clock ,Alarm ,Date.Temp,Smart light,Snooze,12/24 format, workday alarm mode.