Our timer has two different time mode – silent mode and ring mode. It is available for multiple situation. The ring mode can be used for meeting or class. For the situation that does not need to ring, the silent mode can be used. The timer has a 2.6″ inches LED screen and the numbers showed on the screen is bold and clear. The lightweight timer can be carried with you at any time. It is a perfect product for homework, exercise, gym workout, cooking, class activities. The digital timer clock has three modes (timer mode for count up and down, clock mode and alarm clock mode), you can just press mode button to change mode, quite easy to operate. The timer is made of ABS material, it is lightweight and firm. It has some resistance to falling, pressing and rubbing.