Mega Blaster Pro BirdGard Repels Birds from Up to 30 Acres of Land Protect crops, airports, landfills or any multi-acre facility with this sonic bird repeller by Bird-X. The Agricultural Mega Blaster PRO BirdGard Sonic repellent unit makes bird control easier by using intermittent distress calls to create a danger zone that frightens infesting birds away for good. PREDATOR cries help scare all the birds. Extremely powerful bird repeller system with two high-output amplifiers that drive a 20 speaker tower. Intense sound output covers up to 30 acres 12 hectares . Solid-state electronics mounted inside a NEMA-type control box, suitable for most any application. Generating unit mounts easily to a post or pole using included mounting hardware and bracket. Pre-recorded in four different configurations for the most common bird infestations. Choose any or all of the 8 sounds, including predators to give the birds even more of a sense of danger. Then customize the bird guard by choosing volume, silent time between sounds and hours of operation. 4 Standard Configurations. Contact us to customize configurations to target other combinations of birds Agricultural MEGA-AG Marine MEGA-MAR Crow/Raven MEGA-CROW Woodpecker MEGA-WP This Agricultural MEGA-AG unit repels European Starling American Robin House Finch Ring-Billed Gull Common Grackle Sharp-Shinned Hawk Blue Jay Red-Winged Blackbird Specifications Repel Birds Up to 30 Acres Crystal-Clear Digital Sounds NEMA Rated Case Frequency Range 2,000 10,000 Hz Up to 125 decibels . Power Input 12VDC 3 AMPS via Solar Panel and Battery. 20 Speaker Tower Dimensions; Weight 15 x 10.625 x 10.625 9 lbs. 8 oz. Solar Panel Dimensions; Weight 15 x 30 x 2 13 lbs. Complete system includes generating unit with two built-in high-output amplifiers, 20-speaker tower with audio cables, 40 watt solar panel, battery clips and all mounting hardware. Battery not included. Takes 2 weeks to sh This item ships from a separate warehouse and may require extra time for delivery.