Police have issued advice following a recent spate of robberies in which people are believed to have been targeted for their Apple AirPods. It follows the latest incident in which a 15-year-old boy is reported to have been mugged on The Brent in Stone, Dartford , last Thursday for his earphones. Some offenders are believed to be travelling down from London to North Kent on the railway line. The wireless audio device costs £160 and can be paired with any phone via Bluetooth making it difficult to trace once stolen. In response police said they were now stepping up their patrols in the town centre, as well as Greenhithe and other key locations and times. Officers – both in uniform and plain clothes – have been joined by town centre constables and community support officers in trying to stamp out these activities. As a result, they say they are seeing a reduction in robberies but are continuing to maintain a focus on this type of crime. It is believed some of the offenders may be coming into north Kent from London by train.