【Motion Activated】Sensitive motion sensor detects any active movement within 16-26 feet and activates audible alarm, 110dB sound occurs and super bright red strobe light turns on for 45 seconds . Come with a motion detector, not only for people but also for animals. 【Audible and visible from afar】Siren sound is 110db, can be heard from 1000m away, and strobe light can be seen at 1000m.< br> 【Solar Charging & Long Working Hours】After fully charged under plenty of sunshine, the buzzer can work for about 30 days. No worry about running out of power. 4 unique modes: ① 24 hours with flash and alarm ② 24 hours with flash only ③ at night with flash and alarm ④ at night with flash only 【Applicable environment】Made of high quality ABS material for durable use ; Anti-fall, anti-aging, anti-ultraviolet, high and low temperature, suitable for rainy and snowy weather and outdoor environment. The wireless motion sensor strobe light is suitable for the security of dwelling houses, farms, villas,