The design of the alarm clock is so simple that you will have no problem using it. Easy to use for children and the elderly. Is your child afraid of the dark? Do you like to read in bed? The light-up alarm clock is perfect for your child's bedside table and can be activated by simply pressing the top button. Also a great gift for kids! You can set the alarm volume (high or low) and it will ring for 5 minutes. so as not to wake you up. There is also a 9 minute snooze option. Use the snooze button. The red numbers on the Portable Awakening are crisp and of excellent quality, but you can always use the slider to dim the brightness for less comfort. Note: The data is manual measurement, please allow 1-33cm error, due to differences between light and screen, there will be a certain color difference, the specific received in nature prevail.