Preorder AIAIAI's wireless upgrade for its modular headphones
 

In 2015, AIAIAI introduced its TMA-2 modular system that lets you configure your headphones with on- or over-ear cans, different drivers, cables and other options. Perhaps the most useful option was the H05 Bluetooth band that let you go cable-free,...

https://www.engadget.com/2017/09/29/...able-headband/