Place the water wiggler in your existing birdbath to create a unique ripple effect * Unique agitator action creates continuous ripples in the water, preventing mosquitoes from laying eggs * Eliminating stagnant water and helping prevent the spread of west nile virus * Operates silently on two D cell batteries for up to 2 months; no wiring or plumbing is required, just place it in your birdbath * Natural "rippling brook" sound with volume control creates a tranquil effect