You should know that there are a large number of tutorials online for ways to make a handheld EMP (electromagnetic pulse). They will disrupt electronic devices in your vicinity and would be very useful if masked men approach you and try to photograph you with a potentially illegal biometric collection application. If made correctly they are harmless to people, and if made incorrectly they are most likely harmful to the operator. It is a non-violent defense device.
Also, let’s say the police or ICE or your local chapter of Piss Boy LARPers are walking up on somebody carrying this thing around or with it in a backpack. What happens when you reach over to press the big red button on that package or at the end of a length of wire feeding into your bag? Pretty sure their first assumption won’t be EMP device.
You’d need one hell of an EMP to deflect a barrage of bullets.
Bullets are lead. How exactly does one expect an EMP to have any effect on them…?
Correct.