Zuosheng Portable Alarm Door Stopper, Portable Door Jammer, Travel Anti Theft Door Blocker, No Drill Door Stoppers Security for Home, Apartment Floor Mounted Floor Mounted Door Stopper  (Red)

Vibration Sensing 80dB Deterrent Alarm High-sensitivity sensor instantly detects prying and bumping, blares an 80dB loud siren for 5 seconds to scare intruders and alert you of danger, ideal for travel safety. Heavy-Duty Anti-Break-In Aluminum Build Integrated aluminum alloy mechanical structure diverts external impact force to the ground, firmly jams doors to withstand violent forced entry and tampering. Airline-Approved Portable Travel Size Lightweight 360g compact size (5.3×4.2×2.3 inch), permitted on planes, trains and subways. Comes with storage pouch for hotels, apartments and trips. No-Damage Quick Install & Emergency Release Mount under doors in seconds without drilling or hardware. Simple screw tightening for fixation; fast-release design for instant removal during emergencies. 3 Months Long Standby Battery Power Operated by button batteries with up to 3-month standby duration, delivers stable long-term security for temporary accommodation and private residences.