They can also acquire an enhanced sense of colors and learn about bird while listening to the narration. ○ How to use AREVO BIRD 1. Go to http://alzzam.co.kr/test/coloring/bird/testpage.html and download and print out a test image. 2. Type ‘AREVO BIRD’ in the search box and install the app. 3. Color the printed image, open the ‘AREVO BIRD’ app. Click 'START' button and then scan the key page. 4. Click 'Continue' button. Then point the camera of your device at the image. As if by magic, the animal you colored will come to life and move.