Design and features:The earphones have an integrated microphone and music player and call connect/disconnect controls for paired Bluetooth devices. Additional features include two monitor functions that make ambient sounds easier to hear while wearing the earphones, support for various digital voice assistants (types unspecified) when used with Bluetooth devices that have those capabilities, and manufacturer claimed water resistance. The UA True Wireless Flash comes with three pairs of ear pieces in various sizes, three pairs of removable ear bowl supports, a USB charging cable, and a carrying case/charging cradle has built-in rechargeable battery that the manufacture claims can be used to recharge the earphone batteries up to 4 times between its own charges. The free Under Armour MapMyRun app download for Apple and Android mobile devices can be used to track run distance, pace, elevation, and other workout metrics.
Sound quality: We found the UA True Wireless Flash 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. The overall sound can be summarized as boomy and a bit etched. The bass (as in bass drums, bass guitars, stand-up bass, etc.) has good impact and goes deep, but is boomy and somewhat prominent. The midrange (voices, guitars, horns, etc.) is fairly even, but is slightly grainy and the upper midrange is slightly 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 and sizzly (sounds that should have a delicate shimmer have a sound reminiscent of bacon frying). This model does a decent job of recovering the room ambience of a recording (the sense of the acoustic space in which the audio program that's being listened to was recorded). 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.
Comfort: As typical of in-ear models they produce a sense of pressure in the ear canal opening might be uncomfortable for some. Users with small ear bowls might find that the earphone body does not fit securely into their earbowl and that the earphones are mostly held in place by the section of the earphone that is inserted in the ear canal. Users with medium and larger sized ear bowls will probably find that this model fits and stays in place with no problems and are very stable even during vigorous head movement. Some uses might find pushing the control buttons to actuate the functions drives the earphone further into the ear canal and causes ear discomfort.
