Countdown time range: 1 second - 99 minutes and 59 seconds; Clear display: screen, easy to see and easy to set time; Memory function: When the countdown is finished, pressing STOP/STAR will automatically return to the initial time you set. When using it time, you only need to press the /STOP button to restart the countdown; End reminder: When the countdown is over, it will continue to remind with "di, di" sound for about it stops. After the reminder sound ends, it will return to the initial time and wait for the use. Multiple use: The timer is suitable for homework, exercise, gym workout, cooking, sports, games, and classroom activities. It is powered by 1 AAA batteries(not included in the package). color: White material: plastic Package Contents: 1 x timer Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.