Touch-triggered sound and force: more than a physical doorstop, it's a high-decibel siren. The instant the door is nudged, a 120 dB alarm erupts—loud enough to scare off intruders and rouse the whole house. Solo guardian for peaceful nights: slip this "security fortress" into your luggage—whether you're in a hotel, dorm, or shared flat—and sleep soundly when you're on your own. Zero-drill, zero-damage install: no tools, screws, or adhesive. Slide it under the door in 3 seconds—ready to go, perfect for renters and dorm dwellers. Rock-solid impact resistance: a triangular brace locks tightly between door and floor, creating powerful inward resistance that makes the door almost impossible to force open. Dual defense, double safety: physical barrier + piercing alarm. Even if the sound doesn't deter an intruder, the sturdy physical barrier buys precious time to call for help or react., Manufacturer: LuLobtg