Closed-back vs. open-back headphones
Sometimes referred to as simply “closed” and “open,” this distinction addresses the design of the part of the headphone that covers the area behind the driver in a straight line away from the side of your head. Closed-back headphones like the ATH-M50xBT2 prevent sound from escaping and leaking into your microphone. The downside of this design is that it traps pressure inside the headphone, which creates false low frequencies. Open-back headphones, on the other hand, don’t suffer from this issue. They deliver outstanding accuracy and clarity that are suitable for critical listening.
Circumaural vs. supra-aural headphones
In layman’s terms, these words simply mean “over ear” (circumaural) and “on ear” (supra-aural). In the case of headphones, this refers to the design of the earcup, which is the cushion that sits between the headphone’s speakers (drivers) and your ear. Supra-aural headphones are rarely used for professional applications; although, they’re great for casual listening — especially if you need to be aware of what’s going on around you. On the other hand, over-ear headphones such as the ATH-M50xBT2 offer excellent attenuation of external noise.

Audio-Technica ATH-M50xBT2 Features:
- Critically acclaimed sonic Bluetooth performance and build quality
- Easily take phone calls with the built-in mic
- A favorite of top audio engineers and pro audio reviewers
- 15Hz–28kHz frequency response
- 45mm drivers with rare-earth neodymium magnets and copper-clad aluminum wire voice coils
- Tuned for flat response and superior accuracy across the entire frequency range
- Circumaural design contours around the ears for excellent isolation in loud environments
- 90° swiveling earcups for easy 1-ear monitoring
- Professional-grade earpad and headband materials give you comfort and durability
- Collapsible design gives you space-saving portability
- A top choice for tracking, mixing, DJ monitoring, and personal listening
- Includes carrying pouch, USB charging cable, and 3.9-foot detachable stereo audio cable