Amazon.com: Bose QuietComfort 35 II Noise Cancelling Bluetooth Headphones— Wireless, Over Ear Headphones with Built in Microphone and Alexa Voice Control, Silver : Electronics
Updating the software or firmware of your product
Firmware Update Adds Amazon Alexa to Bose QuietComfort 35 II | Digital Trends
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The Secret Bose QC35 Series II Hardware Update - YouTube