Bird-X Quadblaster QB4 Ultrasonic Bird Repeller, Covers 6,500 sq. ft.

Bird-X Quadblaster QB4 Ultrasonic Bird Repeller, Covers 6,500 sq. ft.

• Most popular ultrasonic bird repeller
• Emits soundwaves that irriate and scare birds away
• Humane, safe alternative that is nearly silent to the human ear
• Simple to use and install, extremely effective.Frequency Range:20–30 kHz
• Ideal for indoor or semi-enclosed spaces up to 6,500 sq. ft.