This is an electronic bird repellent for crops, aviation fields, outdoor areas protection against birds.
Natural birds predator / alarm / distress calls are recorded digitally and reproduced at intervals between 3 and 30 minutes, with and average of 5 soundings per hour.
Mains or 12V battery powered.
More details in the product brochure. All settings are customisable, please see documentation or contact us for advice, before changing settings, if unsure.