The innovative pest control device frightens birds and other unwanted critters away from property using sound and light. Self-contained and completely portable, the Sonic Shield operates on 4 AA batteries and is easily installed virtually anywhere. The versatile device has two modes of operation for around-the-clock pest deterrence: a daytime mode to repel pests using flashing LED lights and barking dog sounds; and a nighttime mode that repels pests using only the flashing LED lights—ideal for areas where night noises are not allowed.