①. 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 ②. All-in-one functions: Wireless projection alarm clock with internal temperature and humidity display; Temperature & time projection with ON/OFF button; 1 USB charger; 2 alarm and snooze functions; DCF automatic time setting with time zone selection; Calendar with 7 language choices; Time in 12/24 format. ③. Projection function: All information on the display can be easily read from any angle. Project time and temperature at the same time. Press the button to project with battery for 8 seconds and keep projecting with power supply; the ON/OFF button can also be used to control it. Adjustable time angle facilitates the selection of a suitable angle. ④. Automatic clock, indoor temperature and humidity: Atomic clock automatically shows the correct time (12/24 format). Indoor temperature and humidity units are clearly displayed. The temperature is displayed in either °C or °F. These additional features will help with decisions about daily clothing. ⑤. USB connection, double alarm with snooze function: Set two separate alarms for different purposes. Press the top button to snooze the alarm for an extra five minutes of sleep. The USB output interface on the watch enables easy charging of electronic devices. ⑥. Dimensions and power supply: Approximately 13.5 * 4 * 8.5cm; 2 x AAA batteries (not included) or power adapter (included). Touch the top of the clock to activate the backlight and projection for 8 seconds. Backlight and projection remain on with power supply, and the backlight has 4 level selections. It can run on battery, allowing use for outdoor travel.