A man has been assaulted in his Sydney unit by a trio of men who threatened a woman with a stun gun before they left.


The couple was sitting in the lounge room of their Parramatta unit when they heard the rear gate open about 6.15pm on Saturday, police say.


Three men burst through the back door and assaulted the man as he sat on the sofa, punching him several times to the head and arms.


The woman was threatened with an electronic stun device before the trio fled.


The attackers were seen getting into a small four door hatchback parked nearby.


The first man is described as being 180cm tall with a muscular build and long black dreadlocked hair pulled back in a pony tail.


The other two men are described as being 180cm tall with muscular builds, about 100kg in weight with short black hair. All three were wearing black t-shirts and track pants.


Detectives investigating the incident ask anyone with information to call Crime Stoppers on 1800 333 000.


AAP


17-03-13 0420