Amazon.com: Bose QuietComfort Wireless Noise Cancelling Headphones, Bluetooth Over Ear Headphones with Up to 24 Hours of Battery Life Bundled with Green Extreme Wireless Portable Charger (Black) : Electronics
Serial number page—headsets
Bose QuietComfort 35 QC 35 II Noise Cancelling Wireless Headphone AU Stock | eBay
how to pair BOSE QC35 and check the serial number through BOSE connect App - YouTube