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Amazon.com: Bose QuietComfort 35 II Wireless Bluetooth Headphones, Noise-Cancelling, with Alexa Voice Control - Rose Gold : Electronics
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Using the Equalizer settings - Bose QuietComfort® Earbuds II
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