The NPD Group reports that Bluetooth headphones represented 54 percent of sales for the first half of 2016, marking the first time that Bluetooth headphones have surpassed sales of wired headphones in the U.S. “Bluetooth headphones saw a 42 percent year-over-year increase in dollar sales for the six-month period, while the overall headphones category saw a 7 percent increase,” notes Twice. The average sales price dropped 5 percent from the same period last year. The top brands for the period included Beats, LG, Bose, Jaybird and Skullcandy.