[Natural in technology] This alarm clock is designed with a wooden appearance, This is not just a multi-function alarm clock, but also a versatile decoration in your home. [Two power supply modes]The alarm clock supports two power modes: battery power and USB power. Battery power is more convenient (Need 4xAAA batteries, battery not include). USB power supply is more -efficient and protects the environment. It is recommended that you use USB power supply. Product Features: [3 Alarm Settings Available]This digital alarm clock not only has 2 display modes (12/24H) and temperature(°C/°F) , but also comes with 3 groups of alarm settable. Each alarm sounds for 1 minute, ensuring to wake you up even in the deepest sleep [Adjustable Brightness]You can choose 3-level(from low to high) brightness for the most appropriate brightness to satisfy your different needs. So it can protect your eyes well. You can also read temperature (°F/°C) from it's [Great Present] Retro wood grain with delication appearance to decorate your desktop also for your friends.