MIAMI -

You talk. You text. You Facebook. Now, you could fight back using their smart phone as a self-defense weapon.

That's thanks to a new iPhone case that packs a punch to say the least.

The Yellowjacket was created by former soldier Seth Froom after he was robbed at gunpoint.

"I started thinking about what device was on me at all times; my smartphone and then the solution grew from there, that concept of combing a personal security device with my smartphone," said Froom.

And so the Yellowjacket was born: A cell phone case that charges your iPhone and has a built in 650,000 volt stun gun.

"It feels like you got a hot iron and you're holding it there, and the longer you hold it, the hotter it gets," said police Sgt. Dennis Jacobson.

Johnson tested the Yellowjacket for Local 6 and said it's not unusual for law enforcement officers to test stun guns on themselves before taking them to the streets.

While the Yellowjacket is the first of its kind, it's not the first high tech self-defense weapon designed around smart phones.

There is now a pepper spraying smartphone case. The Spraytect case holds a pepper spray cartridge and encourages you to record video of your attacker while you spray.

And last year, Local 6 put a new app to the test -- the MyForce app turns your phone into a panic button and contacts a security hotline.

The question remains: Is a smartphone stun gun a weapon women would want to use?

"I think it would be a good idea. It's the closest thing to you. You don't have to put your phone down to get your stun gun," said one woman asked to try to Yellowjacket.

The maker says there are two safety features to keep it from accidentally discharging. There is a plastic cover over the prongs and then the switch button to activate the volts.

Though some women said they'd use the stun gun phone case to ward off a criminal, the officer who tested it for us said the Yellowjacket should be a last resort.

"You have to touch them in a vital area such as the neck or wherever. All it is going to do is give you the ability run. That's it. It's not going to cause that person to be disabled," said Johnson.

The Yellowjacket runs about $139.

For now, the large case is available for the iPhone 4 and 4s, but cases are in the works for the iPhone 5 and Samsung Galaxy S4.