Effectively Repels Unwanted Animals & Pests Motion Detection Triggers An Ultrasonic Sound & Light Flash Built-in Speaker Emits A Safe Ultrahigh Frequency Alert Rugged Marine-grade Waterproof Construction (ip-44) Up To 30ft Horizontal Coverage Area Works Day Or Night With Built-in Ir Detection Sensor Includes 4 Rechargeable Batteries & Wall-mount & Outdoor In-ground Mounting Options