Dual Alarm Snooze FunctionCHEREEKI alarm clock has two separate alarm times. You can set 2 alarms in a day to plan your time properly. The snooze function allows for an additional 5 minutes of sleep, just press the snooze/light button located at the top of the alarm clock. This will cycle until you press any other key. USB Charging & Built-in BatteryCHEREEKI Alarm Clock contains a USB charging cable for power supply (without adapter), a built-in button battery to save the 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 Display & Adjustable BrightnessDigital alarm clock displays with temperature ( / ). You can switch to display C (Fahrenheit) or F (Celsius) temperature with the UP button. During charging, the LED display always lights up and automatically adjusts the brightness in 3 levels for different periods. Large LED digital display, clear and comfortable visual sense, it will automatically dim from 10:00 pm to 6:00 am You can also adjust the brightness manually in 4 steps. Voice ControlThe LED display can be adjusted automatically. It lights up when it detects sound or when you touch the 'SNOOZE/LIGHT' key. clapping, tapping on the table, typing or making a sound of more than 90 dB to activate the smart alarm clock. The screen turns off automatically after 6 seconds. 10 Music & Adjustable VolumeIt is a non-ticking alarm clock, and you can adjust the volume of 10 alarm sounds by pressing + or - when setting the sound or alarming volume, easy to set. The time display supports 12-hour and 24-hour formats.