Luminous wall clock Numbers and hands with night light function. It demands to absorb enough light energy during the day. At night, it will be fluorescent, so you can see the light at night or in the dark.(Tips: The wall clock glows for 5-6 hours in the dark, the lighting time depends on the daylight). Silent wall clock Its sound is very low, almost no sound, so it can give you and your family a peaceful sleep. Large Numbers and Good Visibility30cm round shape, transparent mirror material has a wide viewing angle, and the large digital wall clock makes it visible even from a distance. Easy to InstallThe included hooks are easy to install, just stick a small nail through the plastic hook and it will hang securely on the wall in seconds. (Hook included) Total Satisfaction Guarantee If you are not satisfied with this clock for any reason, contact us within 30 days for a full refund or replacement. A 90-day quality guarantee is also included for all parts.defective.