Dual-Head USB Rechargeable Ultrasonic Dog Repeller

Dual-Head USB Rechargeable Ultrasonic Dog RepellerThis is a stronger repeller for encounters with a more determined or aggressive dog than a single-head unit can handle, built around a high-power dual-head ultrasonic unit. Made from a high-power dual-head ultrasonic unit Dual-head design covers a wider angle in a single burst than...