Design and features:These headphones can be used wirelessly with Bluetooth devices or can be cord connected. When cord connected they have medium sensitivity so they can provide satisfying volume levels when used with home audio equipment and all but the lowest-powered portable audio devices. The Plattan ADV Wireless has an integrated microphone and touch sensitive Bluetooth volume, music player, and call connect/disconnect controls. Additional features include an audio cable mini-jack input connection for wired operation that doubles as an output connection for a second set of headphones in Bluetooth operation, earcups that fold for ease of storage, and a machine washable headband cover. This model comes with a detachable 45-inch long audio cable for wired use with built-in mic and answer/music player control button for iPhone/iPod/iPad, and smartphone use (the cable's 4-contact mini-plug works with most mobile devices but may not be compatible with some other audio equipment) and a USB charging cable.
Sound quality: We found the Plattan ADV Wireless delivers sound quality that falls in the good range - it reproduces music and voice reasonably well despite the obvious shortcomings in its sound. The overall sound can best be summarized as full, somewhat bassy, and tending toward muffled. In wireless mode the bass (as in bass drums, bass guitars, stand-up bass, etc.) has good impact and goes somewhat deep, but is somewhat prominent and boomy. The midrange (voices, guitars, horns, etc.) is fairly even, but somewhat hazy, grainy, and has a slight plastic resonance (something like what you would hear if you talked into a semi-rigid plastic cup). The treble (cymbals, the upper range of violins, etc.) is extended but smeared - sounds that should have a delicate shimmer sound blurred. While the sound has a good sense of liveliness it is closed-in -- sound-wise it is obvious that you have something covering your ears. The sound does not change when this model is cord connected.
Comfort: We found that these headphones produce a sense of moderate pressure on the ears. The earcups don't offer a lot of top to bottom swivel range and some users may feel that the ear pads sit awkwardly on the ears. Incidental contact with the touch controls on the right outer earcup can cause unintentional pausing, track skipping, or volume level changes. The ear pads might feel hot and/or sticky after prolonged use.
