Three armed men entered a house in Northampton while the occupants were in. They then searched one of the rooms and left, empty-handed.
The burglary happened just after midnight on Monday, 21 November in Goldcrest Court.
Police described the all the burglars as carrying weapons, including a screwdriver and possibly hatchets or knives.
They are all described as black. One of them wore a balaclava.
Another was about 5ft 10in with braided hair, facial stubble and wore a thick, grey scarf around his neck and a black jacket. He held a screwdriver and was first through the door.
The third offender was about 6ft with a skinny build.
Witnesses or anyone with information about the stolen property are asked to contact Northamptonshire Police on 101. Alternatively, they can call independent charity Crimestoppers anonymously on 0800 555111.