Bestbuy offers Apple - Geek Squad Certified Refurbished AirPods Max - Space Gray for $339.99 (orig. $549.99) with free shipping.

Product Description:
Geek Squad® Certified Refurbished products are thoroughly, painstakingly and lovingly tested, so you can be sure that your device will work right, right away. Learn more about Upgrade your music listening experience with these refurbished space gray Apple AirPods Max headphones. Active noise cancellation technology helps eliminate ambient noise for crisp audio, and up to 20 hours of playback ensure uninterrupted use. These Apple AirPods Max headphones feature soft memory ear cups and a breathable-knit mesh canopy headband for plush comfort.

• An Apple-designed dynamic driver provides high-fidelity audio
• Active noise cancellation blocks outside noise, so you can immerse yourself in music
• Transparency mode for hearing and interacting with the world around you
• Spatial audio with dynamic head tracking provides theater-like sound that surrounds you¹
• Computational audio combines a custom acoustic design with the Apple H1 chip and software for a breakthrough listening experience
• Designed with a knit-mesh canopy and memory foam ear cushions for an exceptional fit
• Magical experience with effortless setup, on-head detection, and seamless switching between devices²
• Easily share audio between two sets of AirPods on your iPhone, iPad, iPod touch, or Apple TV
• 20 hours of listening, movie watching, or talk time with active noise cancellation and spatial audio enabled³
• Store in ultra-low-power mode with the slim Smart Case
• ¹ Spatial audio works with movies, TV, and video in supported apps. Requires iPhone or iPad.
• ² Requires an iCloud account and macOS 11.1, iOS 14.3, iPadOS 14.3, watchOS 7.2, or tvOS 14.3 or later.
• ³ Battery life varies by use. See apple.com/batteries for details.