YS LED Rotating Timer IlSent Kitchen Time Manager 1. Shell material: plastic 2. Duration: 99 minutes and 59 seconds 3. Power supply: 3 AA batteries (not included) 4. Size: 8x10x3.2 cm 5. Function: forwardcountdownmemory function 6. Silent when running, the reminder sound can be adjusted to sound reminder or silent, about 70 decibels sound reminder 7. Replaceable battery, 3 AA batteries (not included) are durable and can be used for about 3 to 6 months 8. The screen will automatically turn off in 5 seconds when not in working state, and the brightness will automatically decrease in 5 seconds when working state 9. Large LED display, very easy to read 10. Easy to use and easy to operate, just one button to adjust the time, one button to startstop the time countdown, designed for cooking, learning, meetings, etc. 11. Equipped with strong magnets, brackets and hanging holes, it can be used in a variety of scenarios such as hanging on the wall or sticking on the refrigerator