You can also loot them from a mission in the Pirate tier.

March 13, 2011 by Forgotmytea

this job: Pirate: Hack a Boat Load of Electronics

March 13, 2011 by Mazdafreak

hahha i completed the final mission in the matter of minutes :D

i just leveled up after previous mission, and my max energy is about 4200, so i did that phone job until i had enough phones, fought the shadow king with assist of a friend and then, last part, i got a weak enemy in my rival list. i went dominating her with my 260 stamina, 100 times

March 14, 2011 by Nettimato

I got mine!

March 15, 2011 by A Wikia contributor

you could have someone who had a buttload give you some like i did lmao

June 28, 2011 by Alejandrojimenez