Countdown Function:Reasonable planning time,a good helper for managing study time,custom 60-minute countdownEnergy Saver Mode/Voice activated screen:In the case of no USB charging ,lithium battery power supply, the alarm clock will enter the energy-saving mode, you can clap hands, tap the desktop or tap the product, the panel display will light up for 25 seconds, and then automatically turn offAlarm and Sound Adjustment:5 sets of funny polyphonic wake-up ringtones to say goodbye to annoying beeps,8-level volume adjustable, the volume can be adjusted at will,say goodbye to a sudden awakening, and don't worry about the alarm sound being too loud or too lowAlarm Setting:2 sets of alarm clocks are set independently, specializing in irregular work and rest, and easy to handle children's daily work and rest habitsRechargeable Alarm Clock:The alarm clock is charged with the Type-C charging port,Use the included Type-c cable to charge easy to plug and unplug, and has a long service life.The product needs to be charged to activate, and it should be charged for 4 hours before the first use