Mr Perry has cerebral palsy and it was the first time he had been robbed since he began living independently four years ago.
"It was shocking ... I feel completely gutted,'' Mr Perry said.
The stolen technology was a "lifeline'' which allowed him to communicate with the "outside world''.
Mr Perry was working with police and had a blunt message for the thief.
"We will find you ... We will get justice.''
As his flat's contents were not insured, he started a givealittle page on Sunday, aimed at raising $1300 to replace the stolen items.
Patrick Pethica (24), the friend who graduated on Saturday, said the thief would have known they were stealing from a disabled person because of items in the bedroom, such as the electric adjustable beds.
"It makes no sense,'' Mr Pethica said.