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 surface [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 energy-efficient and protects the environment. It is recommended that you use USB power supply. [Great Present] Retro wood grain with delication appearance to decorate your desktop also perfect gift for your friends. Specification: Input Voltage: USB5V/1A battery: 4xAAA batteries(not included) [Note]This wall clock is a plug-in model, using the DC cable, the battery is used for power-off memory, and cannot supply power. No adapter. size: about 155 x 70 x 72mm Material: ABS colour: Black Package Contents: 1 x LED alarm clock(white characters / red characters) 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.