Fangrui Product Details 1. Three-color Projection Radio Alarm Clock Usb Digital Alarm Clock Thermometer & Hygrometer 2. Clockalarm Function, Alarm Mode: Buzzer Or Radio; 3. Snooze Function 4. Temperature Cf Switch; 5. 1224 Hour Display 6. Projection Function, The Projection Screen Will Rotate 180 Degrees , Adjustable By Turning The Projection Wheel: Front 90 Degrees, Rear 90 Degrees. 7. The Brightness Of The Projection Can Be Adjusted In Three Levels-off, Dim And Bright. (the Default Is Slightly Bright). Note: There Is No Projection Function In Battery Mode 8. Fm Radio Function 9. Clock Display Three-level Brightness Adjustment 10. Indoor Temperature Display 11. Indoor Humidity Display 12. Clock Color (red, Blue, White) Three Colors, Free Adjustment 13. Product Material: Abs Plastic Shell 14. Output Power: 5v 100ma 15. Power Supply: Usbdc Power Cord 16. Working Voltage: 5v 1a 17. Product Size: 18.5x8.7x6cm