Green light remains on for 90% of the task time, yellow light flashes in the last , and red light illuminates with an audible alert when time is up. Adjustable volume from silent mode to 103 decibels with four alert sounds: soft beep, ringtone, buzzer, and melody. Visual countdown timer with traffic lights, helping children intuitively understand time without needing to read. One-button /stop with a clear LCD display and separate controls , ringtone, custom time, and reset button. Child lock and smart memory function that remembers previous settings, making it convenient for everyday tasks.