Powered by solar, no electric cable needed, no need to worry battery run out, making sure the solar motion sensor can be working 24 hours continuously to keep any unexpected animal from entering your private property. The decibel of the warning sound is up to 110dB, which is simliar to the volume of rock concept, and please be noticed that staying in a loud environment for a long time could demage your hearing. Motion detection range is around 5 to 8 meters, detection angle is about 110 degree, and not only will it be activated by animals but human beings, which can give you a safer living environment. Built in 6 LED red light bulbs, when any movement was detected, this solar motion sensor will be activated with sirens wailing and red LED light blinking, which have the same feature as the LED solar warning strobe light. Specification: Material: ABS Waterproof: IP65 Number of LED Light Bulbs: 6 Visibility: 800 meters Battery Capacity: 400mA (3.7V) Battery Life: Full charge can last 20 days more, can be activated 200 times more Charging Type: Charging through solar panel Solar Panel Voltage & Power: 5V, 0.6W Charging Time: About 6~8 hours Decibel: 110 dB (Simliar to rock concept) Detection Zone: 5~8 meters (According to the temperature around) Detection Angle: 110 degree Package included: 1 x Solar Motion Sensor 2 x Screws Note: Please be noticed that staying in a loud environment for a long time could demage your hearing. Four modes available: ①Whole day and night working with siren and strobe light mode on. ②Whole day and night working with only strobe light mode on. ③Whole night working with siren and strobe light mode on.( In daylight it won't be working, only absorb solar power into electrical energy.) ④Whole night working with only strobe light mode on.