Design and features:This Bluetooth wireless noise canceling home/studio-style over ear model provides good sound and excellent active noise reduction. Its closed design and electronic noise canceling feature reduce both outside noise and sound leaking out into your environment. The headphones work with or without the noise canceling feature being turned on. You can use the noise-canceling feature without listening to music, and the audio cable can be detached to get it out of the way when the headphones are being used for noise reduction only. The headphones have medium high sensitivity when powered with or without the noise cancelation feature turned on and when unpowered, so they can provide satisfying volume levels when used with home audio equipment and lower-powered portable audio devices. The BT-600ANC has a volume control plus an integrated microphone and player function controls. Additional features include Detachable audio cable. Earcups fold and swivel to flat for ease of carrying and storage. Has touch sensitive Bluetooth volume, music player transport, call connect/disconnect, and digital voice assistant activation right earcup panel control. Covering entire right earcup touch panel with hand also mutes (but does not silence) audio as long as the hand is in contact with the panel. Touch control also effects headphone volume when headphones are cord connected. Has power on alert tone, power off, Bluetooth connect/disconnect, NC and ambient sound monitoring status alert tones and voice announcements, and low battery voice announcement. Supports unspecified digital voice assistants when used with Bluetooth devices that have those features and that, if needed, have the appropriate apps installed. Bluetooth connected Apple mobile devices using iOS Version 5 and above will show the battery level. This model comes with Detachable 43-inch long standard audio cable, USB-A to USB-C charging cable, Carrying case.
Sound quality:We found the BT-600ANC delivers sound quality that falls in the good range - it reproduces music and voice reasonably well despite the obvious shortcomings in its sound and excellent active noise reduction. With the noise cancelling mode engaged the bass (as in bass drums, bass guitars, stand-up bass, etc.) has good impact and goes deep, but is prominent and boomy, and depending on the program material, can somewhat overwhelm the midrange. The midrange (voices, guitars, horns, etc.) is fairly even but is somewhat hazy, grainy, congested (think sonic traffic jam) and soft and a bit dark (there is an opaqueness that covers up fine detail). The treble (cymbals, the upper range of violins, etc.) is extended but is subdued and a touch sizzly (sounds that should have a delicate shimmer have a sound reminiscent of bacon frying). While the sound has a decent sense of liveliness, it is closed (sound-wise it's obvious you have something plugging your ears) and does a so-so job of recovering room ambience. Warm character. The overall sound can be summarized as "a bassy head cold" (bassy, congested, and hazy). Noise Canceling: Excellent noise reduction across the entire frequency range with the low frequencies reduced the most. A faint rushing sound can be heard in very quiet environments when there is no audio program material to mask it.
Comfort and Fit:We found that these headphones produce a sense of moderate pressure around the ears.
As typical of over-ear models the ear pads might feel hot and/or sticky after prolonged use.
Large
Users with larger ears might find that the over-the-ear fit of the ear pads feel cramped, or that the ear pads sit on, rather than around their ears; in that case the less-than-ideal fit around the ears might interfere with the earpad seal and reduce the noise reduction capabilities of the headphone.
Users with larger heads might find that the headband does not have enough adjustment range to allow the earcups rest properly on the ears and/or that the headband presses uncomfortably on the top of the head.
Stability
Some users heads may find that when they lean far forward the headphones feel a bit unstable and shift forward. Incidental contact with the touch controls can cause unintentional track skipping, or volume level changes.
Other noise
When wearing this model while walking the muffled vibrations from each foot step can be heard through the headphones.
When the audio cord is used the sound of it rubbing on clothing may be heard through the headphones.
Clearances
Earcup folding mechanism can pinch fingers painfully.