A reverend in Arizona claims he has performed over 20,000 exorcisms in the last 40 years. However, that is not why Pastor Bob Larson is drawing national attention. Larson is giving the ancient practice of exorcisms an update by performing them over Skype.

Larson, an evangelical Christian based in Scottsdale, offers customers the convenience of having their demons exorcised via video, a 21st century method that critics say is bogus, Time.com reported Wednesday.

"It's real," Larson told CNN. "There would be no reason to theatrically stage this for any reason. Why would anybody do that? I have no idea."

Larson, who also teaches his daughter Brynne how to slay evil spirits, charges $295 for an hour-long Skype exorcism, according to the Huffington Post. Because Skpye is cheap, Larson is able to reach clients all over the world, his website notes.

"Receive ministry, get your life on track, and experience healing and deliverance at YOUR CONVENIENCE," Larson's website says. "Bob Larson will personally minister to you, while you sit comfortably in you own home. No plane flights, no expensive gas, no hotel costs."

In one video, Larson performs an exorcism on a man in Norway, who was possessed by four demons, CNN reported.

"We will make the curse 10 times worse," one of the demons, Leviathan, says through the man. "We will kill everyone."

The demons were all cast out after an exorcism that lasted over an hour, CNN reported.

"I'm going to reach out, cross the miles and anoint you in the name of the Father, the Son and the Holy Spirit," Larson told the man through the screen.

But for Reverend Isaac Kramer, director of the International Catholic Association of Exorcists, exorcisms via Skype are impossible.

"They just can't be done that way," Kramer said, according to Voactive.com. "If a person is fully possessed, the demon inside of them will not let them sit in front of the computer screen to be exorcised. Chances are, they're going to throw the computer screen across the room and destroy everything."