Not only is this alarm clock less than 20 decibels when it is running, it will not disturb your sleep, and its time is very accurate. Because this alarm clock has a small night light design, you can see the time very clearly even at night, and you can control the LED light switch by using the button on the back. Made of high quality metal and glass materials, it is durable. The length of the product is 12.5cm, the width is 9cm, and the height is 6cm. This alarm clock is suitable for desktop, living room, office, etc. Item Name: Alarm Clock Material: Metal,Glass Feature: Accurate, Creative, Twin Bell Power Supply: 1 x AA Battery(Not Included) Size Details: Size: 12.5cm x 9cm x 6cm or 4.92" x 3.54" x 2.36" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Alarm Clock(Battery Not Included)