You can either never leave your house, throw caution to the wind, or prepare yourself with a personal safety device. All sorts of scary situations exist, in the city (muggers) and deep in the great outdoors (bears!). The Sound Grenade by ROBOCOPP works just as you’d expect: pull the pin and you’ll set off a 120-decibel siren that scares off impending danger. Replace the pin, and the sound turns off. Take a look at the field test to get an idea of the sound volume.
120 dB Siren
Dimensions: 2.79 x 1.22 x 0.51 in.
Weight: Less than 1 oz.
Quality Manufacturing: 5 YEAR WARRANTY
Operating Temperature Range: -10*C to 40*C, 14*F to 104*F
Available from ROBOCOPP, $24.00.