Color: black, silver Material: plastic + quartz glass mirror Product size: 13.5 * 3 * 8cm Power supply: 2 x AAA batteries (not included) or USB power cable (included) Package contents: 1 x projection alarm clock 1 x USB cable 1 x instruction manual All-in-one functions: Wireless projection alarm clock with internal temperature and humidity display; Time and temperature projection with ON/OFF button; 1 USB charger; 2 alarm settings with snooze function; DCF automatic time setting with time zone selection; Calendar with 7 language options; 12/24 hour format display. Projection function: All display information can be clearly viewed from any angle. Projects both time and temperature simultaneously. Press the button to activate projection for 8 seconds when on battery power; projection remains active when powered. Use the ON/OFF button to control projection. Adjustable projection angle allows optimal viewing position. Automatic time, indoor temperature and humidity: Atomic clock technology automatically synchronizes to the correct time (12/24 hour format). Indoor temperature and humidity are clearly shown. Temperature can be displayed in Celsius or Fahrenheit. These features help assist in daily planning and clothing choices. USB output and dual alarm with snooze: Set two independent alarms for different schedules. Press the top button to activate snooze for an additional five minutes of rest. Built-in USB output allows convenient charging of compatible devices. Dimensions and power: Approx. 13.5 x 3 x 8cm. Powered by 2 x AAA batteries (not included) or via included USB cable. Touch the top of the unit to activate backlight and projection for 8 seconds. When connected to power, backlight and projection remain active with 4 adjustable brightness levels. Operates on battery power, making it suitable for indoor and outdoor use.