Multi-function LED Projection Alarm Clock Voice Talking Clock Type: Alarm Clocks Shape: Geometric Style: European Applicable Places: Study room, office, bedroom, living room Special Features: Luminous, perpetual calendar, thermometer Power Type: 3xAAA battery (not included) or USB 5V Shell Material: Plastic Color Options: White without USB cable, Black without USB cable, Black with USB cable, White with USB cable Dimensions and Weight: Approximately 9x9x10.5cm, 0.188kg Packing Box: Neutral English box Main Functions: - 5 music alarm options - Built-in large speaker with clear and appropriately loud sound - 12/24 hour time format switchable - Temperature display with Fahrenheit/Celsius switch - Blue or green backlight option - Supports 24-hour continuous voice time and temperature reporting - Supports 15-hour intelligent voice time and temperature reporting - One music alarm setting available - Snooze function with 10-minute interval - One-button operation for timekeeping, snooze, and alarm functions - Clear projection and loud o output Function Key Descriptions: 1) Mode button: Function key - Press once to adjust time: "HR" adjusts hour, "MIN" adjusts minute - Press twice to adjust alarm settings - Press three times to adjust hourly chime option (HR) and alarm settings (MIN) for 24 or 15 hour mode 2) In normal state: Press "HR" to switch between 12 and 24 hour display format 3) Press and hold "HR" button while pressing "MIN" button to switch between Fahrenheit and Celsius temperature display