A man was attacked from behind by a gang of robbers who swiped his headphones.
The 20-year-old victim was walking along on Leeds Road when he was assaulted by three men on April 6.
Detectives are appealing for witnesses to the incident which occurred on the grassed area near Asda Glass Houghton at around 11pm.
A police spokesman said: “The first suspect was white, in his early 20s, skinny legged and chunky on top, wearing a thin black water proof tracksuit top, dark Nike tracksuit bottoms and an Adidas baseball cap.
“The second was also white, also in his early 20s tall and of a skinny build, wearing a bright red hooded top, jeans and black Nike trainers with distinctive bright blue markings and laces.
“Finally, the third man was younger than the others and was of a small build, wearing all black.”
Anybody with any information should contact DC 4398 Cowan at Wakefield CID on 101 or Crimestoppers anonymously on 0800 555 111.