Sennheiser HD 559：
https://www.amazon.com/sennheiser-hd-559-open-headphone/dp/b01l1iiekm

Audio-Technica ath-M40x：
https://www.audio-technica.com/en-us/ath-m40x

beyerdynamic dt 770 pro：
https://north-america.beyerdynamic.com/dt-770-pro.html
Sennheiser HD 559:
https://www.amazon.com/Sennheiser-HD-559-Open-Headphone/dp/B01L1IIEKM

Audio-Technica ATH-M40x:
https://www.audio-technica.com/en-us/ath-m40x

Beyerdynamic DT 770 Pro:
https://north-america.beyerdynamic.com/dt-770-pro.html