ShotSpotter - Little Brother may be listening.

[battle_sight_zero]

Got to see this when it was first being brought out about 10 years ago when I was helping with wearable computers. Even then could tell the difference between gunfire and fireworks. The only way many agencies/municipalties will be able to get this technology is by homeland security grants. Again great technology but there are many other needs above this. This is not a need.