7) Portable Door Stopper
To make sure you feel 100% safe when you're on your solo trip, get yourself a portable door stopper. This door stopper from the ZZRUI Store is battery-operated and does not require complex installation. When it is on, it can make an extremely loud noise of up to 120 dB to alert you of any possible intruders. It can be used as a common rubber-based door wedge when it is in off mode. It also comes with three sensitivity levels.
Edited by Nimisha
GIF
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