Outlet/Battery Powered: Mainly socket-powered for daily use, supplemented by 3*AAA batteries (Not included) for emergencies or travel. Note: Batteries are backup due to higher consumption—NOT everyday operation. Unleash Big Sound from Compact Size: Just 4.5*2.5*2.5 inches, this powerhouse delivers exceptional sound quality—ideal for travel, bustling hotel rooms, and office settings. Save space without compromising on audio prowess,elevate your experience anywhere. 0-100% Dimmable Display: Perfect clarity day and night, enhance your viewing experience. Easy to see in sunlight during the day, and at night it won't sting your eyes and interfere with your sleep. Adjusted to different brightness according to your needs, customized for you. 40 Stations at Your Fingertips: Manual or auto-tuning for effortless discovery. Experience top-notch sound through 30 volume levels. Set your sleep timer anywhere from 5 to 180 minutes. Elevate your audio journey effortlessly with our versatile, high-quality radio clock. Customized Dual Alarm Clock: Set alarms for Weekend, Weekday, or 7-Day modes. Wake up gradually to seven tones, even your favorite radio channel. Adjust volume with 30 settings and snooze for 9 minutes. Perfect for any schedule, easily enhance your wake-up experience.