Bird-X Critter Blaster PRO uses digitally recorded sonic harassments to repel pests from large outdoor areas. Get rid of critters and pest birds by choosing any or all of 8 different harassment sounds. Designed for use in large, remote outdoor areas. Customizable settings - 8 harassment sounds available. Four-speaker system; control unit can be mounted anywhere. Covers up to 6 acres (four speaker system). Critter Blaster PRO will repel pests of all species - pest birds (including geese and birds of prey), deer, raccoons, foxes, bears, rodents, etc. Get rid of critters in airfields, farm fields, landfills, and other large outdoor areas. Fully programmable electronic animal and bird repeller. Repels all pest species. Wide area coverage - up to 6 acres. Choose any or all of 8 harassment sounds available. Control box plus 4 separate directional speakers, each with 100 feet of wire. Weatherproof - NEMA type box is designed to withstand outdoor use. Repel pests of all species including birds, animals, rodents, etc. Recommended for use in large, remote outdoor applications, such as: airports, landfills, large buildings/grounds, farms and fields etc. Increase/maintain property aesthetics. Speakers: 8 ohms, 75 watts. Coverage: Up to 6 acres (2.4 hectares) depending on size, shape and surroundings of area. Power requirements: 1 amp, 110v or 220vAC adapter or 12vDC. 110v cord is 50 ft/220v and 240v cords are 6 ft. Sound pressure: 105-110 dB at 1 meter. Frequency: 2-10 kHz. Compliance: supply power source is UL and CE listing. EPA Est. 075310-OR-001. NEMA type box. Included: control unit, 4 speakers with cords, 100 feet of wire per speaker, AC adapter with cord, DC battery cables, complete instructions. Speakers measures 4-inches length by 4-inches width by 6-inches height.