Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you! [Projection function] This alarm clock has projection and almost 180 degrees of free rotation, time and temperature on the display can be easily read from any angle [Double alarm with snooze function] Set two separate alarms for different purposes. Press the top button to doze off the alarm for an extra five minutes of sleep [Multi-Information-Display] The multi-function alarm clock shows the following functions: time (12/24 format), date, week, double clock, temperature ( C or F), humidity [USB connection or battery operated] The alarm clock can be operated with 2x AAA batteries (not included). [Backlight] Touch the top of the clock to activate the backlight and projection for 8 seconds. 4-level background lighting selectable with power supply. You can run it on battery, this projection alarm clock is ideal for outdoor travel Technical data Dimension: about 14.5cm * 9.5cm * 5cm Weight: about 300g Time format: 12 / 24H Temperature: -9 C to + 50 C / 15 F to 122 F. Resolution: 1 C / F Humidity: 20% -95%. Resolution: 1% Snooze: 5 minutes Powered by: USB or 2 * AAA battery (not included) Features Projection alarm clock with internal temperature and humidity display Calendar with 7 language choices Temperature & time projection with ON / OFF button 2 Alarm and snooze function Long press the TIME button to set the time 4-level background lighting selectable with power supply Scope of delivery 1 x projection alarm clock 1 x USB cable 1 x EN user manual