Apple's Next Big Thing Could Be High-End Headphones to Rival Beats and Bose

Apple Inc.'s AirPods earphones have been a surprise hit. Now, the company is planning a push into the high end of the market. The Cupertino, California-based technology giant is working on noise-canceling, over-ear headphones that rival headsets from market leaders like Bose and even the company's own Beats by Dre brand, according to people familiar with the product's development. The company plans to launch the headphones as early as the end of this year, but has faced development challenges that might push back the release, the people said. Work on the Apple headset has been on-and-off over the past year.