Features:  1. Mirror Design.  2. 12/24 Hour Format.  3. Temperature Display:Celsius and Fahrenheit can be converted.  4. Two Display Modes:Time mode and date display mode, long press the DOWN button to switch.  5. 3 Groups Of alarm Clock Functions:Set daily alarm and (week 1~6)/single break (week 1~6)/double break (week 1~5) and snooze.  6. Large LED Display:The digital alarm clock is quite clear to read.  7. Snooze Funtion:When the alarm rings, click the snooze button (SNOOZE/A1/A2/A3) on the back, the alarm will stop and sound after five minutes.  8. 2 Levels Of Brightness Adjustment: Manual adjustment: Press the UP key to adjust the two levels of brightness.   Automatic adjustmen: 18:00—6:00 The brightness is automatically dimmed.  9. Simple To Use:Place on the table.  10. Two Power Supply Methods:USB powered and battery powered (1xAAA battery required, not included).  11. Voice Control Function:Only when the battery is used for power supply, the display screen can be turned on by voice.  12. Power Saving Function:Battery powered, no button operation for 15 seconds, the screen will automatically shut down, 5.0V screen is always on.    Specification:  Shell Material: Plastic;  Mirror Material: Coated Glass;  Dial Material: Plastic;  Voltage: DC 5V;  Style: Style 1/Style 2/Style 3/Style 4/Style 5/Style 6/Style 7/Style 8/Style 9;  Size: About 265x35x70mm/10.4x1.38x2.7inch;    Package Included:  1 x LED Digital Alarm Clock;  1 x USB Cable;  1 x Manual