1The calendar is available in 7 languages (English, German, Italian, French, Spanish, Dutch and Danish). 2It can detect indoor temperature and humidity, and can switch between Celsius or Fahrenheit, which is convenient to use. 3The compact, simple design and large digital display make it easy to read all information from all angles. 4With projection and nearly 180 degree free rotation function (display time, temperature), it can meet your various needs. 5Easy to use, plug in the power to display the temperature and humidity, helping you to monitor the temperature and humidity changes in the room in real time. Item Type: Projection Alarm Clock Material: ABS Weight: Approx. 247g / 8.7oz Voltage: 5V Time System: 12H/24H Temperature Detection: -9+50 (15122) Resolution: 1/ Humidity Detection: 20%95% Resolution: 1% Temperature and Humidity Calibration Time: 30 seconds Battery: 2 x AAA Battery (Battery Not Included) Product Size: Approx. 13.5x8.3x3.2cm / 5.3x3.3x1.3in 1 x Alarm Clock (Battery Not Included) 1 x Manual 1 x Power Cable