[Easy Twist Operation]: One key operation, just rotate to set time.The value will increase/decrease with the minimum unit of 5s. The digits will be darken in 5s and shutdown in another 5s when there is no operatio. [Large Digits & Loud Alarm]Large black screen and blue oversize digits allow you easily see the time. Alarm buzzer will beep loudly in large spaces even in big meeting room, classroom,or big kitchen, exercise room. [Led Light Reminding]Besides loud alarm, the green light is also a way of reminding. Blink green light and led digital number will remind students when time ends in silent mode without disturb others. [Countdown and Countup Kitchen ]Digital count down from 99 minutes and 55 seconds to zero, or as a stopwatch count up from 0 to 99:55, meet the need of home perfectly. [Diverse usage scenarios]Led rotate countdown kitchen is fit for cooking, kids time management, housework,excercise,fitness, game, classroom study, meeting and other activities size:86x68mm Material:ABS colour:Blue Package Contents: 1 * Kitchen 1 * USB cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.