Rotary Timer & Easy OperationAVINIA large digital timer can be set quickly and easily by rotating the outer ring, and a button to start/stop countdown countdown (time range 0-99 minutes), designed for kitchen, classroom, fitness, meetings and more, whether we are older or children, with this rotation timer, we can control and use it easily. Multiple Scene Use: What does this twist timer bring us? As a kitchen cooking timer, say goodbye to steaks that are too raw or too heavily cooked, even if you are more of a professional. As a children's timer to strengthen children's time awareness, remind children to balance games and learning, also teacher timer, student timer, classroom timer, exercise timer, bell timer, meeting timer, play timer, egg timer, fitness timer, BBQ timer. Continuous light and large numbers: Three brightness levels are each "mode constant brightness", "dim mode" and "light off" to meet different requirements. Enjoy large LED digits. What a smart visual timer! Loud Alarm & Magnetic: Alarm sounds in three levels from silence up to 90dB. Loud alarm ensures that the sound is heard in another room, intelligent time reminder, we will no longer worry about boiling over or forget something we should have done, but have done. Strong magnets on the back can stick firmly to the fridge, oven, blackboard and all iron walls to facilitate operation with one hand. Energy saving: powered by 3 AAA batteries; when the timer is not running and without operation, the display brightness is dimmed and then switched off after a few seconds. Don't worry, it does not consume energy in sleep mode.