Design and features:This Bluetooth wireless portable ear-insert model provides very good sound. Although it lacks active noise reduction, the ear plug-like design helps to reduce both outside noise and sound leaking out into your environment. The Liberty Air X has an integrated microphone and player function controls. Additional features include Charging/carrying case has built-in rechargeable battery that the manufacturer claims can be used to recharge the earphone batteries 3 times (to add an additional 21 hrs. of playtime for a total of 28 hrs.). Manufacturer claims water resistance (IPX5). It has touch controls, power on and Bluetooth connect/disconnect alert tones and battery level voice announcements. Supports compatible digital voice assistants when used with Bluetooth devices that have those features. Has quick charge feature: 10 min of charging will provide 1 hr. of playtime. Bluetooth connected Apple mobile devices using iOS Version 5 and above will show the battery level. This model comes with 5 pairs of ear pieces in various sizes, USB charging cable, charging cradle/recharger battery/carrying case.
Sound quality: We found the Liberty Air X delivers sound quality that falls in the very good range - it reproduces music and voice very well although it does have some noticeable sonic quirks. bass (as in bass drums, bass guitars, stand-up bass, etc.) has good impact and goes deep, but is somewhat prominent and boomy. The The midrange (voices, guitars, horns, etc.) is even but somewhat grainy, and a bit hazy and congested (think sonic traffic jam), and the upper The midrange (voices, guitars, horns, etc.) is a touch etched (a bit more sharply outlined then it should be). The treble (cymbals, the upper range of violins, etc.) is extended, but is a bit prominent, smeared, sizzly (sounds that should have a delicate shimmer have a sound reminiscent of bacon frying), and somewhat dry. The sound also has a good sense of liveliness and is somewhat open--sound-wise it almost seems like you don't have anything plugging up your ears and it does a decent job of recovering room ambience. Mixed character - warmish bass with neutral The midrange (voices, guitars, horns, etc.) and treble. The overall sound can be summarized as somewhat bassy, grainy and a touch etched.
Comfort: We found that these earphones as typical of in-ear models produce a sense of pressure in the ear canal opening that might be uncomfortable for some. Users will probably find that this model stays in place with no problems for casual use and that they are stable during fairly vigorous head movement. Hitting the stems that hangs out of the ears can knock the earphones lose and cause it to fall out of the ear. Some users might find tapping on the controls to actuate the functions drives the earphone further into the ear canal and causes ear discomfort.
