The Audio-Technica ATH-ANC27x QuietPoint are below-average headphones that poorly isolate listeners from ambient noise. They sound exceedingly bass-heavy and feel a little cheap and flimsy. On the upside, they don't leak much sound and will not disturb the people around you at high volumes.
The ATH-ANC27x are not good everyday headphones. They don't isolate well. They don't have a good sound for critical listening or recording. They're also too unstable for sports.
Average for Home Theater use. They have no latency since they're wired. However, they have a short audio cable so unless you have an extension cord they won't be ideal for comfortably watching movies from your couch. Unfortunately, they also have a poorly balanced sound that may drown a few the voices in movies.
The ATH-ANC27x QuietPoint's design looks similar to the ATH-ANC29. They have an all-black color scheme with silver accents on the ear cups. Their design does not stand out, but their understated style may be appealing for some.
The ATH-ANC27x do not quite rest well on the ears. The ear cups are not large enough to encompass the ears like an over-ear design. This puts a little pressure on the tip of the ears that can get uncomfortable over long listening sessions. On the upside, they are lightweight and not too tight on the head
There is only the noise cancelling switch on the ATH-ANC27x. This means that you will have no control over your audio, which is disappointing. However, the noise cancelling switch does feel better made than the ATH-ANC29 model which shares the same design.
The ATH-ANC27x do not provide a stable listening experience. They will easily fall off your head during high-intensity activities like running or jumping. On the upside, they won't slip as much during casual listening, as long as you put them on correctly.
The ATH-ANC 27x are quite big for on-ear headphones. They're decently portable thanks to their small frame relative to some larger over-ear models. However, they don't fold up into a more compact format, to take less space in a backpack. They won't fit into your pockets, even larger jacket pockets and are too cumbersome to fit comfortably in some bags. On the upside, the ear cups to lay flat, which slightly increases their portability.
Comes with a thin pouch that will protect the headphones from scratches and doesn't add additional bulk. However, the pouch will not shield your headphones from water damage or hard falls.
Build quality is decent but a little plasticky. They have a thin, metal frame that slightly strengthens the headband and the earcups are sufficiently dense to withstand a few drops. However, the plastic hinges are weak points that feel cheaply made.
Comes with one 1/8" TRRS-TRRS cable with no mic or in-line controls.
Poor isolation. These headphones perform below average in all categories. The passive isolation provided by the ear cup does a decent job of blocking treble sounds, however, they stop being effective below 800Hz. The active noise cancellation provides around 10dB of reduction from 100Hz-400Hz, but not doing much below or above that range. The self-noise is rather high too.
Good leakage performance. The majority of leakage happens in the mid range, around 600H, and there is little sound leaking above 3KHz.
The ATH-ANC27x can last up to 82 hours of continuous play time at average volumes. This means you won't have to change the triple AAA battery throughout the day, which is great for long flights or road trips. Sadly, they can't be used without the battery, and do not have any battery saving features like an auto-off timer.