Product Material: plastic and mirror Size: 172x43.8x91 (mm) Color: white,blue,red Battery: Built-in lithium battery Package content: 1xradio alarm clock,1x1.5mUSB cable 1.Dual Alarm Clocks Setting amp Adjustable Snooze Time Alarm clock with radio supports dual alarm clocks setting.The snooze feature of this alarm clock for bedroom allows additional sleep of 5-60 minutes,the default snooze time is 9 minutes,you can also manually set the snooze time you want. 2.FM Radio Station amp Sleep Timer Bedside alarm clock has FM radio(15-level volume adjustable) function,it can store up to 15 radio stations (FM radio frequency:76-108 MHz),by next time this fm radio alarm clock will show you the preset broadcast channel.With sleep timer function you can set a certain amount time (5-90 minutes optional) for the radio. 3.Clear 6'' Display amp Auto-Brightness DimmingLed alarm clock has large LED display of 82cm x 172cm,specifically selected blue-light digits are eye-friendly.What's more,with the auto-brightness dimming you can enjoy a better visual experience from this blue alarm clock.Also you can adjust the 4 brightness levels manually if you want. 4.USB Charging Port amp Battery Back-upRadio alarm clock with usb port allows you charge cellphone or other devices.And there is the battery backup in this bed alarm clock,you don't need to set the data again if power failure by USB. 5.2 Ways of Alarm Clock Digital alarm clock provides 2 ways of alarm clock,radio alarm or digital alarm.Choose one to wake you up and start a nice day