HiFiMAN Deva with Bluemini @ TechPowerUp
 

HiFiMAN's new Deva is a planar magnetic headphone which doubles up as a Bluetooth headset when you attach the Bluemini device. Currently, the Deva bundled with the Bluemini retails at $299 which also makes it the most affordable of the current planar headphones from HiFiMAN.

https://www.techpowerup.com/review/h...with-bluemini/