Upgraded Rechargeable Visual Timer - The most classroom timer in the market require AAA batteries,you need to constantly replace the battery.Our upgraded kitchen timer has been released,the productivity timer is rechargeable,after fully charged, it can be used for 3 hours. Not only does it save energy and environment friendly, but it also saves you the trouble of replacing batteries. Timers with Clock Alarm Function - According to market research, it has been found that most timers for kids in the market cannot be timed simultaneously without knowing the time,which cannot meet the needs of most people. So the visaul timers we have developed has both clock and alarm functions. Meet all your needs in terms of time,such as kitchen timers for cooking. Easy Operation Slient Timer - Simply twist the middle button to directly set the countdown.The timer for kids will ring or or vibrate when the countdown ends. This kids timer works without any ticking noise, make you more focused on studying and working.The timer can also be used as adhd tools for kids and adhd tools for adults. Extensive Application - If you are trying to manage your time or help your child manage it, this timer is your best choice. It can also become a good helper in your life or work. Perfect as classroom must haves or teacher must haves tool. The visual timer for classroom can help your student improve time management skills and efficiency. Good Helper for Improving Efficiency - As displaying the numbers, the visual timer can also be seen with the eyes to clearly know how much time is left, making it easy to understand for people at any age. If you have any problem,please feel free to contact us ,we will help you solve it within 24 hours.