Design and features:These headphones can be used wirelessly with Bluetooth devices or can be cord connected. When cord connected they have low sensitivity; so while they can provide satisfying volume levels when used with home audio equipment and higher powered portable audio devices, they may not be a good match for lower-powered portables. The Crusher Wireless has an integrated microphone and volume, music player function, and call connect/disconnect controls for use with paired Bluetooth devices. Additional features include an integrated battery powered bass extension amp that powers built-in secondary bass drivers (speakers). The amp has an auto on/off feature and a 40 hour battery life; the level of bass enhancement is manually adjustable. The bass extension amp is not needed for headphone operation, so the Crusher can operate when the built-in rechargeable batteries run out. This model has earcups that fold for ease of storage and comes with a detachable 47-inch long audio cable a with built-in mic and a call answer/music player control button for iPhone/iPod/iPad and smartphone use, a USB charging cable, and a carrying bag.
Sound quality: We found the Crusher 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 bassy and a bit muffled. With the bass intensity adjustment set to minimum, bass (as in bass drums, bass guitars, stand-up bass, etc.) has good impact and goes deep, but is prominent and boomy. The midrange (voices, guitars, horns, etc.) is fairly even, but a bit muffled and is somewhat overwhelmed by the bass. The treble (cymbals, the upper range of violins, etc.) is extended, but sizzly (sounds that should have a delicate shimmer have a sound reminiscent of bacon frying) and a bit prominent. While the sound has a decent sense of liveliness it is closed-in -- sound-wise it is obvious that you have something covering your ears. The bass adjustment has a noticeable effect on the sound ranging up to a boost extreme enough to actually make the headphones vibrate on your head. There was no significant difference in sound between the Bluetooth and wire connected modes.
Comfort: We found that these headphones produce a sense of pressure on the ears that is on the high side of moderate. As typical of on-ear models the ear pads might feel hot and/or sticky after prolonged use. When wearing this model while walking the vibrations from each foot step can be heard through the headphones.
