120dB Mini Wireless Vibration Alarm Door Stop Alarm for home Wedge Shaped Stopper Alert Security System Block Blocking System

Description: Can be used as a doorstop when power switch is turned off. Powered by a 9-Volt Battery. (Not Included) Mini size, space-saving. No installation required. Special design for use at home, office, hotel rooms. Ensures your safety and peace of mind at home or when travelling.