Precise countdownthe timer has 4 preset times. Just flip the timer, the time you want to count down can be up. At the same time, if you want to manually set the time perfectly to every second, just press two buttons to set the precise minutes and seconds as needed. Adjustable soundThe ticking with adjustable volume can keep you quiet and focus on school, homework and other silent activities, while the flashing indicator light will remind you when the timer enters silent mode. It is very suitable for children with special needs, parents, teachers, office workers/professionals and students. It also has a high volume mode, which can be used normally in noisy environments. Easy to UseIt can be started and stopped without pressing a button. And it is completely portable, simple and stylish countdown timer. Multi-function tool4-gear timing function, a practical time management tool, easy to use. Excellent time management tool for home, school and office. Material: ABS Battery Type: 2 x AAA Batteries (Not Included)