Sony's WH-1000XM4 have the best sound and noise cancellation of any headphones we've tested, and they're $100 off right now.
Sony WH-1000XM4 review: the best noise-canceling headphones get better - The Verge
Sony WH-1000XM4 review: The best noise-cancelling headphones
Sony WH-1000XM4 Wireless Noise Cancelling Headphones - F.S.V. LTD
Sony WH-1000XM4 XM4 Wireless Noise-Cancelling Over-the-Ear Headphones — Joe's Gaming & Electronics
Sony WH-1000XM4 (Black) Over-ear Bluetooth® wireless noise-canceling headphones at Crutchfield
Sony WH-1000XM4 review: The best for most of us - SoundGuys
Sony WH-1000XM4 Wireless Review
Sony WH-1000XM4 Review: Noise-Canceling Headphones Fit For 2020 - SlashGear
Introducing the Sony WH-1000XM4 Wireless Noise Cancelling Headphones
5 tips to get the most out of the Sony WH-1000XM4 - Coolblue - anything for a smile
Sony WH-1000XM4 review: A nearly flawless noise-canceling headphone - CNET
Sony WH-1000XM4: First Impressions with an underwhelming upgrade - News
If your item is defective, no need to worry!
Sony WH1000XM4/B Premium Noise Cancelling Wireless Over-the-Ear Headphones
Sony WH-1000XM4 Noise-Cancelling Headphones Review 2020