Operation confirmed. Includes cable ties. ISOTRONIC Bird Repellent, Crow Repellent, Pigeon Repellent, Waterproof Ultrasonic Bird Repeller, Ultrasonic Repellent, Battery Operated, Veranda, Anywhere Installation, Hangable, Effective Range 40 square meters, Crow and Bat Repellent Goods It emits ultrasonic waves at frequencies that birds dislike, so by placing it in areas where birds habitually visit, it can effectively repel birds such as pigeons and crows. ・Operates on 6 AA batteries (batteries removed before shipping). No power cable required, portable and easy to use. Just two steps: insert batteries and turn on the power. ・Emission time: 5 seconds on, 25 seconds off. Operates normally even during the off period. ・The frequency band changes during emission to prevent birds from getting used to a specific frequency. ・The effective range of the ultrasonic waves is up to 40 square meters. It creates an uncomfortable environment, causing birds to voluntarily change their habitat.