Bose QC45 adds EQ control, here's how to install the update
Bose QuietComfort 35 II Wireless Bluetooth Noise-Cancelling Headphones Earphones | eBay
Bose QuietComfort 35 II review - SoundGuys
Bose now lets you customize the EQ of its QuietComfort 45 headphones - The Verge
Bose QuietComfort 35 II Review (Noise Cancelling Headphone) | Audio Science Review (ASR) Forum
Equalizer settings I'm using in Spotify for the QC45 to get them to sound a bit more neutral & compensate for the slightly shrill sounding upper frequencies : r/bose
Bose QuietComfort 35 II equalizer iPhone - All For Turntables
Bose QuietComfort 35 II Review (Noise Cancelling Headphone) | Audio Science Review (ASR) Forum