About this itemDial: Clear dial with stereoscopic number. Black hour and minute hands with perfect accuracyGentle Increasing Volume– Classic beep alarm sounds, ascending four stages for gentle wake at first, then ascend in volume with more and more hurried sounds, which last for nearly 1 hour or ,when alarm is turned off or snooze bar is pressed.Non-ticking –More silent concise design alarm clock without annoying tick tock sound?nice for a good working and learning environment, also for a soothing sleepSnooze and Backlight – Comes with Snooze and backlight .press the top button 1 time and alarm snooze a 5 minute or to light up the clock to see the dial in the darkness.Battery Powered – Runs on 1 AA Battery (Battery Included ).