Features: LED-display screen: large mirror screen, easy to read, timer is-displayed in large font. Application: this led-rotary digital timer is-very suitable for cooking, baking, learning, meditation and fitness. There is-magnetism on the back, you can-stick it on classroom whiteboards, cooking utensils, tasks, student tablets, iron-walls, refrigerators, gymnasiums or other steel-places. Time-management helps students-focus on time-management for study, showering, game, etc, classroom teacher organization, mother cooking, baking, and boiling eggs. Large LED-display, rotating regulation, counting up-and down, sound reminder. Specifications: Material:Plastic Size:As Picture Shown Color:Black/White/Pink Support Magnetic Installation Quick adjustment: With a stop every 5 seconds Adjustable range: 00: 00-99: 55 Support counting up-and down Volume level: mutes/low volume 60-75dB/ high volume 80-90dB. Working voltage: 4.5V(3 No.7AAA batteries) Working temperature: 0℃~50℃ Package Includes: 1x Cooking Timer note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.