LED Display: Displays temperature, time, date, and day of the week. Allows conversion between 12/24 hour formats. The thermometer can switch between Celsius and Fahrenheit (0��C to 50��C, 32��F to 122��F). Multi-Music: Features natural sound chords/alarm, colorful stars, and rhythmic projections with music. Multi-Color Color Changing: The vibrant lights are visually appealing, assisting you in rediscovering the universe by transforming the colors of the sky in your home. Realistic Star Light: Projects lifelike stars onto the ceiling or wall, creating a comfortable and relaxing sleep environment for children, calming and aiding their sleep, while also being perfect for adults seeking relaxation. Alarm Clock Function: Set it to wake your child in the morning, or let them enjoy soothing sounds to fall asleep. The alarm and sleep features function effectively. Ideal for college students in dorms, parties, family gatherings, and for kids winding down. Dimensions: 10 x 8 x 10 cm. Power Supply: Requires 3 AAA 1.5V batteries (not included). Package: 1 x Star Projector / Alarm Clock, 1 x User Manual