Here is a smartphone case that has a stun gun to allow you to defend yourself. Volt also has an emergency app to broadcast your location and real-time video to your loved ones.
With one touch of your fingerprint, you can activate the 50,000 voltage stun gun, sound an alarm, and turn on the flashlight. Volt needs 3 simple steps to be activated, so you won’t have to worry about accidents. Expected to ship in March 2017.