Battery-powered digital alarm clock: uses 3 AAA 1.5V batteries (not included), allowing cordless operation. Compact design for easy portability. Features a clear digital display with straightforward alarm settings and easy-to-understand instructions. Available in five colors: black, white, pink, blue, and green. Light sensing control function: when enabled, the backlight adjusts automatically based on ambient light levels, helping reduce disturbances for light sleepers. Snooze and light function: when the alarm activates, press the snooze button to illuminate the display and delay the alarm for 5 minutes before it rings again, helping ensure you don't miss important appointments. Temperature and time display: shows real-time ambient temperature for indoor climate monitoring, supporting family health awareness. Offers selectable 12-hour or 24-hour time formats, along with date and alarm time, all clearly visible at a glance. Gradual alarm tone: the alarm sound increases gradually in volume and frequency, providing a more natural awakening experience from deep sleep with effective wake-up performance.