Self-defense and anti-wolf device

Volume: 120 dB
The main material is high quality ABS (shell)
Battery model: 12V *23A (replaceable)
Size: length 68* width 42* thickness 23mm
Color type: black printing
Applicable people: children, ladies, elderly, etc.
How to use: Pull out the pull ring switch, immediately
The alarm sounds about 120 decibels, plug in
Pull back the ring to turn off the alarm.