This upgraded version comes with a large On/Off switch. Long last for years! This electronic is recommended for food cooking, eggs boiling, kids time management, classroom study, excercise / workout timing, oven baking. You must want a reliable to know when to start or stop clearly. Here is the best-selling in 2024! This new digital kitchen features Loud/Silent switch, On/Off switch, Larger Screen and Buttons with clear markings for ease of use. It can count both up & down. Instead of counting in your , it is time to start your new routine here! Dual channel timing T1, T2 two , can work at the same time Indoor temperature measurement monitors indoor temperature in real time to create a comfortable environment The Loud / Silent switch is a whole-new surprise! Alarm buzzer will beep loudly in large spaces, allowing you to hear clearly in another room. Makes it a must-have kitchen for cooking safely! Besides, this digital stop watches for classroom has silent switch works perfectly for kids and teachers. Product name: Multi-function alarm clock dual channel Timing range: The H-M mode can be set to 99 hours and 59 minutes mode can be set for up to 99 minutes and 59 seconds Battery: AAA*2(excluding battery) Temperature range: -19.9~70C(-4~158F) Accuracy: 1 (2F) Size: 96x80x24MM Colour:White Material:ABS Package Contents: 1 x Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.