Garden Battery Mouse Repellent - Deep Green (4 x UM1)
Color: Deep green - ABS material - Simulate the sound wave to jar on the rat's central nervous system bruit the sound wave along with underground to dissipate the rat - Ultrasonic technology deters rats from invading your home - Powered by 4 x UM1 battery (not included) - Power consumption: 0.25W - Frequency range: 400~1000Hz - Effective Range: 650 Square Meters - Comes with English manual