Alarm schedules: This alarm clock features everyday, weekday, and weekend alarm settings. The display shows the day of the week for each day. Choose between 12 or 24-hour format to suit your preference. The alarm volume gradually increases from low to high, helping you wake up gently without sudden loud sounds. 4-level brightness adjustment: Adjust the screen brightness to your preferred level for morning, afternoon, or evening use. At the lowest setting, the screen does not emit light, allowing for better sleep at night and reduced power consumption. When the low battery indicator appears, replace the batteries promptly. Power options: The alarm clock can be powered via USB or batteries. When using USB power, the screen remains continuously lit. When running on battery power with the USB cable disconnected, the screen automatically turns off after 10 seconds and lights up again when any button is pressed, remaining on for 10 seconds. Scheduled alarms and all other functions continue to operate normally. Dual alarm with snooze function: Equipped with two independent alarms, this clock allows you and your family to set different wake-up times. When the alarm sounds, press the "SNOOZE/LIGHT" button to delay the alarm for 5 minutes, or press any button on the back to turn it off completely. Ideal for heavy sleepers. Easy to use: Designed with simplicity in mind, this compact travel alarm clock has minimal buttons for straightforward operation. Color: White Material: ABS Size: 10 x 10 cm Package Contents: 1 x Alarm Clock Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the photo and the actual product. Measurement may vary by +/- 1-3 cm.