Stock futures opened slightly higher Monday evening as investors awaited highly anticipated events from tech giants Amazon and Apple and looked ahead to the first batch of corporate earnings results set for release Tuesday morning.
(Bloomberg) -- Apple Inc. has stopped selling headphones and wireless speakers from rivals including Sonos Inc., Bose Corp. and Logitech International SA as the company gears up to launch its own new audio products.The Cupertino, California-based technology giant has long…