Product Features: [3 Alarm Settings Available]This digital alarm clock not only has 2 display modes (12 or 24H) and temperature(C or 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 or 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 or 1Abattery: 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 72mmMaterial: ABScolour: BlackPackage Contents:1 x LED alarm clock(white characters or red characters)1 x USB cableOnly 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.