SincereetaliThis is a wonderful clock that you can easily read the time and weather on the ceiling or wall with a projection function. It can also display the date/day and measure the indoor temperature and humidity at the same time. Features: Equipped with a projection function: you can easily view the time on your wall or ceiling when you wake up. Color LCD display with large digits: easy and clear to read from anywhere in the whole house. Indoor temperature and humidity measurement: according to the data to predict the weather. Max./Min. Temperature and Humidity Records. 12H/24H time format; °C/°F Temperature display. Alarm function (ON/OFF) and snooze function. Specifications: Color: Black Display: Color LCD Measuring Temperature: 0°C~50°C / 32°F~122°F Temperature Resolution: 1°C Measuring Humidity Temperature: 20%~99% Calendar: 2001~2009 Year Power Supply: AC Adapter or 2 * 1.5V AAA (Not Included) Power Adapter: Input 100-240V~50/60Hz, Output 4.5V Plug Type: EU Plug Product Size: 11.3 * 6.3 * 14cm / 4.45 * 2.5 * 5.5in (L * W * H) Product Weight: 346g / 12.2oz Package Size: 12.5 * 9 * 15cm / 4.93 * 3.54 * 5.9in (L * W * H) Package Weight: 478g / 16.86oz Note: When the clock is powered by a 4.5V adapter, the projector and display are always bright; when powered by batteries (not included), you need to press LIGHT to turn on the display.