Perfect backlight alarm clock: With large white LED numbers, it is easy to read during the day or night, and can easily adjust the brightness level 2 according to personal preferences. It has 12/24 time switching, alarm clock, nap function, and temperature display function. Temperature display: In time mode, press the mode button to display the temperature. Press the DOWN button to switch the temperature display/ unit between . In temperature mode, press and hold the mode button until you hear a BI sound. The LED will switch display: temperature (5 seconds) -;time (10 seconds) -;repeatedly press and hold the MODE button until a BI sound is heard, and it will return to time mode. Sleep and memory function: Just press the SNZ button, and when the alarm clock rings, you can have 5 minutes of sleep time. It has a memory function (requires 3 AAA batteries, not included) to remember your settings and ensure that you do not need to reset them after a power outage. Comfortable wake-up alarm: The gentle wake-up alarm starts gently and gradually increases until you turn it off. There is no need to choose between the harsh alarm that wakes you up and the overly gentle alarm that brings you back to sleep. USB port and gift: A high-quality alarm clock that also has a USB port for charging mobile phones and other electronic devices, making it easy to use and particularly suitable as a gift for family or friends.