CLEANRTH TSBR610 Advanced Sonic/Ultrasonic Bird Repeller w/Triple Scan Technology Triple Scan Technology Detects Unwanted Birds 82 Feet Out from Device for 6,000 Sq. Ft. of Detection High-Intensity Adjustable Sonic / Ultrasonic Sounds Bird-Repelling Covers 7,000 Sq. Ft. of Open Area Bird-Repelling Strobe Lights & Powerful Sonic/Ultrasonic Bird-Repelling Sounds Three Adjustable Modes: Always Off | Detection Mode (Turns On as Bird Intrudes Area) | Always On Water Resistant | Battery/Plug-in | Wall Mount/Free Standing | 1 Yr Money Back Guarantee/Warranty