It is powered by button batteries.
1. Countdown time range: 1 second – 99 minutes and 59 seconds;
2. Clear display: large screen(1.45″*1.08″), easy to see and easy to set time;
3. Memory function: When the countdown is finished, pressing STOP/STAR will automatically return to the initial time you set. When using it next time, you only need to press the START/STOP button to restart the countdown;
4. End reminder: When the countdown is over, it will continue to remind with “di” sound for about 30 seconds before it stops. After the reminder sound ends, it will return to the initial time and wait for the next use.