Bird B Gone Bird Chase Super Sonic Bird Deterrent Pre-recorded distress/predator calls scare birds away from treated areas Rigid construction - U.V. protected materials (sun & weather resistant). Day and night mode activated with light sensors General bird setting covers multiple bird species; unit can also be programmed specifically for pigeons, crows, starlings, seagulls, woodpeckers, and more! Includes a standard 110v power cord and one internal speaker for up to one acre of coverage. Additional satellite speakers are available for up to five acres of coverage. Pre-recorded distress/predator calls scare birds away from treated areas Rigid construction - U.V. protected materials (sun & weather resistant) General bird setting covers multiple bird species; unit can also be programmed specifically for geese, pigeons, crows, starlings, seagulls, woodpeckers, and more! Includes a standard 110v power cord and one internal speaker for up to one acre of coverage. Additional satellite speakers are available for up to five acres of coverage.