POWER SUPPLY - The led clock is powered by USB cable only,not battery. You can hide the power wire behind some items or into the wall. (Note: The USB Adapter is not included in the package but a cable is provided). AUTO L1-L4 BRIGHTNESS ADJUSTABLE - Ranging from L1 to L4, the LED clock offers adjustable brightness levels. The automatic brightness adjustment ensures that the display remains comfortable for your eyes under varying lighting conditions. Practical Gift for All Ages - The KWYDYP 4.9'' Mini LED Clock is a thoughtful and practical gift for all ages. Its versatile features, including dual alarms, remote control, and magnetic functionality, cater to the daily needs of anyone on your gift list. MAGNECTIC & TAPE INSTALLATION - More than traditional screw-based installations, this mini digital clock can be installed using included magnets and tape. These two features enhance its versatility as it can be placed in various locations such as kids' bedrooms, offices, or bedrooms without the need for additional stands or mounting fixtures. WHO NEED IT - This digital wall clock is perfect for placement in children's and teenagers' bedrooms. They can easily read the time, date, and the clock also features a nightlight function, providing them with a sense of security. WHY 4.9’’ LED CLOCK - This 4.9’’ LED digital clock strikes a balance between visibility and space-saving. The digital clock is perfectly suited for placement such as kids' rooms, offices, or small bedrooms as room decor aesthetic. It’s an ideal gift for kids, friends or family.