Closed headphones, also called sealed headphones, have a sealed-back earcup that isolate listeners from outside noise. Closed headphones are usually easily identified by a solid piece of metal, plastic, or other non-breathable material on the outer backing of the earcup, rather than a grill or grate.
Noise Blocking- Closed headphones typically block around 10-15 dB, which usually drowns out moderate background noise depending on the particular headphone. They also prevent others nearby from hearing music leaking out of your headphones.
Styles & Features- Closed headphones can be full-size or on-ear with a plethora of feature choices. Look for headset and iPhone ready versions, folding and case-equipped travel models, detachable cables, and striking colors at an array of price points and sound characteristics.
Sound- Nowadays, the very best closed headphones will compete in sound quality with the best in open style headphones. Most audio audio professionals- DJs, location recordists, and studio producers use closed headphones to prevent intrusion of ambient noise distractions.
Bottom Line? Closed headphones provide an excellent bang-for-buck listening experience. It's no wonder closed headphones are one of our most popular recommendations for many listening environments and activities.