Steven Levy, writing for Wired:

Cochlear implants bypass the usual hearing process by embedding a device in the inner ear and connecting it via electrodes to the nerve that sends audio signals to the brain. The implant gets sound from an external microphone and sound processor that usually sits behind the ear. Until now, users have had to deal with balky remote controls to adjust the settings. And dealing with smartphones has required a separate piece of equipment that vexes communication thanks to its low quality and annoying lags. But Bahnmueller, a 49-year-old executive in automotive safety, has recently been testing a new solution. The reason I was coming through so clearly is that his over-the-ear device linked to the implant was streaming directly from his iPhone—essentially putting the conversation in his head.