FLORAL PARK - Expensive headphones are being stolen from teens nationwide, and now it's happening on Long Island. Police say three men in their 20s approached a 16-year-old boy at the intersection of Marguerite Avenue and Emma Street in South Floral Park yesterday evening, punched him in the head and took his Beats by Dr. Dre headphones. The headphones can cost up to $400, fueling robberies in New York subways and across the country. Nassau Police Inspector Kenneth Lack says there have been at least 10 reported Beats by Dr. Dre robberies in the county since the beginning of the year. Anyone with information is asked to call Nassau Crime Stoppers at 1-800-244-TIPS.