Customer Service?90-day free return and 365-day warranty. Please feel free to contact us if you encounter any problems, and we will solve them for you within 24 hours (excluding holidays). ?Easy Installation & Widely use?Please hang intruder deterrent perimeter alarm where get enough sunlight. The motion activated detector alarm is suitable for yard, farm, camping, house gate, garden and other places where need solar sound & light alarm motion sensor. ?Solar&USB charging?ChunHee solar motion alarm outdoor with siren supports both solar and USB charging. It utilizes solar power as the primary source, USB charging as backup when long rainy days, make sure it Non-stop work. ?4 Modes Function You Can Choose? ?24 hours with flash and alarm ?24 hours with flash but without alarm ?at the night with flash and alarm ?at the night with flash only. ?Alarm siren deterrent devices?The siren horn sound is about 129db and bright strobe has 6 led light, solar alarm motion detector with sound can be heard and saw 200m in open area. ?Solar motion sensor alarm?Outdoor motion sensor alarm have sturdy ABS cg, IP65 Waterproof dustproof, sensing angle of is 125°, which will widely capture any movement within 3-8 meter activate the alarm to scare animals and thieves. ABS.