About this item 2 alarms with snooze functionThe alarm clock has two separate alarm times. You can set 2 alarms in one day to plan your time properly. The snooze function allows an additional 5 minutes of sleep, just press the snooze/light button on the top of the alarm clock. This cycle will continue until you press another key USB Charge & Built-in BatteryOur alarm clock contains USB charging cable for power supply (without adapter), built-in button battery to save clock settings in case of power failure. (Attention: Please connect with USB port or ONLY with 5V/1A and 5V/2A adapter to charge the watch) Temperature & Adjustable brightness The digital alarm clock has a temperature display (C/F). You can switch to C (Fahrenheit) or F (Celsius) temperature display via the UP button. While charging, the LED screen always lights up and automatically adjusts the brightness to 3 levels for different periods. Large digital LED screen, clear and comfortable visual sense, it automatically dims from 10:00 p.m. to 6:00 a.m. You can also adjust the brightness Voice controlThe LED display will light up when it detects sound or when you press the ''SNOOZE / LIGHT'' button. clap, knock on the table, touch or make a sound above 90 dB to activate the smart alarm clock. The screen will turn off automatically after 6s 13 songs and volume adjustableIt is a non-ticking alarm clock and you can adjust the volume of 13 alarm sounds by pressing "+ " or "-" When the volume adjustment is sound or alarming, easy to adjust. Time display supports both 12 and 24 hour formats