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: White without USB cable, Black without USB cable, Black with USB cable, White with USB cable Alarm Clock Size and Weight: Approximately 9x9x10.5cm, 0.188kg Packing Box: Neutral English box Main Functions: Five music alarms, built-in large speaker, clear sound with appropriate volume. Time display switchable between 12 and 24-hour format. Temperature display with Fahrenheit and Celsius switch option. Blue or green backlight available. Supports 24-hour continuous voice time and temperature announcement, and 15-hour intelligent voice announcement. Supports one music alarm setting with 10-minute snooze function. One-button operation for time, snooze, and alarm functions for convenience. Clear projection and loud sound output. Main Function Keys Description: 1) Mode button is the function key. Press 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 (24/15). 2) In normal state, press HR to switch between 12 and 24-hour display. 3) Press and hold HR button while pressing MIN button to switch between Fahrenheit and Celsius temperature display.