Ultrasonic bird repeller 1,Scare the birds away a larger radius; 2,Have a longer life. 3,multi ... red, white for day and night, respectively) 2 unitsApplication1,It can be used to drives away all ... Cormorants,Vultures,Rodents,Other Pests, Many More, etc.2.The device can be used in airport, electric ... warehouse, cultural relic protection, etc widely. TD-2(B) Efficient solar Ultrasonic bird repeller