Fairphone, the company behind some of the most sustainable tech products, just released its first over-ear headphones, the Fairbuds XL . Naturally, what sets these apart from other over-ear headphones is that they are completely modular.

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That's right; you can take the Fairbuds XL apart without any toolsandreplace any of the 11 parts yourself -- including the battery. And despite every component of the Fairbuds XL being removable, they have an IP54 rating, making the headphones water and dust resistant. 

I enjoy listening to music, and I really enjoy listening to music with headphones that can fully immerse me in the song I'm listening to. So, with the Fairbuds' focus on sustainability, do they deliver just as much value in audio output? Let's find out.

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Fairbuds XL headphones

Arguably the most sustainably designed headphones, virtually every part of the Fairbuds XL can be replaceable.

Design

The Fairbuds XL come in black or green, and the ear cups are decorated with Fairphone's signature speckles. The headphone wires are visible where the headband meets the ear cups, but that was likely necessary for the self-repairing aspect. 

The green variant of the headphones.

On the right earcup of the Fairbuds XL is a joystick, a pin-sized light, and an oval-shaped button. The joystick is my favorite part of the button design as you can long-press it to pair Fairbuds XL to multiple devices, short-press it to play or pause audio, and slide it to the left or right to replay or skip a song.

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The mechanic is much more functional (and less annoying to fiddle with) than typical ear cup buttons that require multiple presses to skip, replay, play, or pause songs. 

The ear cups and headband cover are made of 100% vegan leather, which feels and looks great and is, of course, better for the environment. With the leather texture, the ear cups feel secure in my ears; they don't give the impression of being too loose and are comfortable to wear for several hours.

Sometimes, on-ear and over-ear headphones can be too constricting and put too much pressure on my head, causing me to take breaks about an hour or two into use. It's worse when you're wearing accessories like earrings.

But I was able to sit at my desk and wear the Fairbuds XL for as long as four hours at a time, no breaks needed. 

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For comfort alone, the Fairbuds XL are ideal for working at a desk, taking walks, or riding in a car, train, or plane. I wouldn't wear these for a heavy lift day at the gym or on a miles-long run, though. They are quite bulky and heavy, weighing more than theBeats Studio 3 and Sony WH-1000XM4 but 55 grams lighter than theAirPods Max (which I also don't recommend for strenuous exercise).

How do they sound?

In short, the Fairbuds XL sound great, but they won't top our best headphone picks. Still, I liked that the bass was deep and prominent enough to give me chills when I listened to "Can't Say" by Travis Scott, but it didn't rattle me too profoundly to make my head hurt or muffled the vocals.

These are ANC headphones, too, and the noise-canceling feature within the speakers works well with the headphone cushions to seal in the music and block outside noises. Does it beat more audio-centric offerings from Sony and Bose? Definitely not. But the ANC is good enough to put more focus on the audio than what's happening around you.

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Adjusting the Fairbuds equalizer settings in the companion app to a preset called "Tokyo," certainly helped with audio output. There are four presets in total, but Tokyo's deep bass, clear background vocals and instrumentals, and full-bodied sound made it my new default preset when listening with the Fairbuds.

Sustainable by design

As I mentioned before, the Fairbuds XL are 100% modular, so if and when anything breaks on the headphones, you can easily repair and replace the part instead of buying a brand-new pair.

And usually, even when one part of a device may be broken, other parts still work. These parts contain precious metals and reusable components, and when they are thrown away, they're sorted as e-waste in landfills.

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Because repairability and sustainability go hand in hand, the former is a central theme to Fairphone's mission. A Fairbuds XL battery costs only