DreamSky 7.3 Inches Large Alarm Clock Radio Electronic FM Clock Radio 2 Inches Digit Display with Dimmer USB Charging Port Weekday Display Snooze Sleep Timer DST Battery Backup.

Warm Reminder: The backup batteries will memorize the settings in case of power outage. During the backup batteries, the clock screen will goes blank and alarm will not sound. Enjoying FM Radio Built in FM tuner lets you choose from a wide variety of radio, talk, and music programming. High performance speaker will hence your listening experience. Spent spare time with this alarm clock radio is fantastic, you won't regret to have it. Radio volume is adjustable to your preference. Extra Large Screen Clearly view the time on the large, easy-to-read screen. Bright jumbo LEDs means no squinting needed to read the time, even without your glasses. Adjustable Dimmer High-low brightness of display can be set for daytime or night time review without disturbing your sleep. Wake to Radio or Buzzer with Adjustable Volume You can choose a buzzer to wake up to or your favorite radio to wake up to on your preference. Whatever you choose, the alarm volume can be adjusted from 1-16 level. 10-120 Minutes Sleep Timer Fall asleep to the radio using the programmable sleep timer and enjoy a soothing relax time before bed. USB Charging Port 5V/1.2A USB output interface at the back of the clock allows you to charge your smartphone, ipad or other USB devices. No hassle to find a charing station when you are in bed Clock Radio Power AC outlet powered, safety DC adapter included. Input voltage: 110-240V (US plug). Power cable length: 58 inches Battery Backup for Clock Setting (Battery Not Included) 2 AAA batteries are needed to store the clock setting in case of power cut so that you don't need to reset the clock when main power returns. But the batteries are not used to powered the clock. With batteries power only, the clock display will go blank and the alarm will not sound.