Apple is planning to push into the high-end audio market with the launch of noise-cancelling, over-ear headphones. The cans are expected to launch at the end of this year and will rival headsets from market leaders like Bose and even the company's own Beats by Dre brand. Bloomberg reports: Work on the Apple headset has been on-and-off over the past year. The company encountered similar problems with the HomePod during its development, including multiple redesigns, according to the people. It's possible Apple will redesign the headphones again before launch, or scrap the project altogether, they warned, asking not to be identified discussing private development work.