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 Wireless Bluetooth Noise-Cancelling Headphones Earphones | eBay
Bose QuietComfort 35 II Wireless Bluetooth Noise-Cancelling Headphones Earphones | eBay
Bose QC45 adds EQ control, here's how to install the update
Using the Equalizer settings - Bose QuietComfort® Earbuds II