[Multiple operation modes for any situation] The motion detector alarm light has 4 modes of operation. [Built-in 13 sounds] Sensitive motion sensor are 13 kinds of music by default. [Advanced solar power charging] alarm motion detector work non-stop while the solar power is charging, maintenance-free and easy to install. [Loud ] The motion sensor alarm up to 129 decibels enough to scare away the unpopular "explorer". motion detector alarm are red and blue LED lamp beads used for bright Combination of strobe warning light and horn allows transmission of both visual and audible signals together for better warning. [Easy Installation & Widely use] Wall mount, making it easy to install. The motion sensor noise maker are widely used in warehouses, factory, school security, farm, orchard, villas, garden, yard and other need security alarm places.