CLEANRTH CR008 Advanced Ultrasonic Rodent Repelling System | Superior Rodent RepellerBrand: CLEANRTH Color: White Features: Over Five New Dominating Rodent Repelling Features! We've found that Change is Key when Rodent Repelling! 1) High Intensity Ultrasonic Rodent Repelling Technology 2) Digitally Processed Electromagnetic Inner Wall Rodent Repelling 3) Turbulent Storm Ultrasonic Rodent Repulsive Technique 4) Rodent Targeting Switch 5) Rodent Confusion Switch Also has powerful 7,000 Square Feet of Open Area Coverage which all adds up