1. each digital bird repeller has two standard chips, in which there are 8 types of voice. The play mode can be selected.

2. Digital bird repeller is better to be used one or two months before fruits ripening.

3. At the beginning, time-interval period is better to be set in the “long ” mode, then four sounds can be selected for random play. After three to four days, the sounds will be changed to another four. The sounds selection switch is on the top left corner.

4. the chip is better to be changed every week, and then the time interval would be changed according to actual demand. It should be adjusted progressively from “long” to “medium” to “short”. It will be OK that the short mode can be reached when fruits ripening. Don’t hurry.

5. If you find several birds adaptable for the sounds, the position of the loudspeaker in to be change in time.

6. at the beginning, several birds like to stay together, after a short period, they will fly away. You should not adjust time interval, you’d better adjust it progressively.

7. the computer and the loudspeaker are all waterproof. Under the shell of the computer is the port, which is designed for airproof.