https://techcrunch.com/2017/08/28/fitbit-made-a-pair-of-bluetooth-earbuds-for-its-new-smartwatch/

Somewhere along the line while it was hard at work on the Ionic, it occurred to Fitbit that it really ought to make a pair of Bluetooth headphones, too. After all, ditching the smartphone during a workout is one of the smartwatch’s selling points, thanks to mobile payment and offline caching for music services like Pandora, so wireless earbuds are a bit of a no-brainer.

So the company built the Flyer. For pretty much all intents and purposes, they’re your basic pair of Bluetooth workout headphones — akin to the latest offering from Jaybird, et al. That’s not a bad thing, mind, but there’s not a ton they’re bringing to the table, save for the fact that they’re designed specifically to hold two simultaneous connections: your Ionic and your phone.