Dear customer, Thank you compatible with choosing our products. If there is any problem with our products, please through the order incompatible withmation. We will be happy to serve you and solve it compatible with 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 compatible with different purposes. Press the top button to doze off the alarm compatible with an extra five minutes of sleep[Multi-Incompatible withmation-Display] The multi-function alarm clock shows the following functions: time (12/24 compatible withmat), 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 compatible with 8 seconds. 4-level background lighting selectable with power supply. You can run it on battery, this projection alarm clock is ideal compatible with outdoor travelTechnical dataDimension: about 14.5cm * 9.5cm * 5cmWeight: about 300gTime compatible withmat: 12 / 24HTemperature: -9 C to + 50 C / 15 F to 122 F. Resolution: 1 C / FHumidity: 20% -95%. Resolution: 1%Snooze: 5 minutesPowered by: USB or 2 * AAA battery (not included)FeaturesProjection alarm clock with internal temperature and humidity displayCalendar with 7 language choicesTemperature & time projection with ON / OFF button2 Alarm and snooze functionLong press the TIME button to set the time4-level background lighting selectable with power supplyScope of delivery1 x projection alarm clock1 x USB cable1 x EN user manual