About this product: Radio Function: This alarm clock radio can store up to 40 radio stations, with a frequency range of 87.5-108MHz. The sleep timer function (adjustable from 5 to 90 minutes) lets you fall asleep to soothing music from your favorite stations. It also offers 15 levels of volume adjustment to suit your individual needs. Dual Alarm and Snooze Function: This alarm clock radio features dual alarm functions, allowing you to set different alarms for weekdays and weekends. You can choose a classic "beep" sound or your favorite music. Using radio music as your alarm helps you maintain a regular schedule and not miss any important moments. Need a little more sleep? Simply press the "snoo" button for an extra 5 minutes of sleep. Adjustable Brightness: This alarm clock radio offers customizable backlight settings. When powered by AAA batteries, you can choose from 4 brightness levels. When powered by a USB cable, the alarm clock offers 5 levels of brightness adjustment, allowing you to find the ideal brightness in any environment. USB charging port and dual power supply: The built-in USB charging port allows you to easily charge your mobile devices. The alarm clock can be powered via USB cable or 3 AAA batteries (sold separately). Please note that the batteries may drain quickly, so they should only be used as a backup power source. (Adapter not included)