The 4.Ai, a hand crafted In Ear Monitor (IEM) utilizing the same internal design and components in the 4.A Custom In Ear Monitors (CIEM). The 4.Ai requires the same painstaking hand craftsmanship that all Heir Audio CIEMs require. The 4.Ai offers all the advantages of an IEM, built with the same exacting standards of all Heir Audio products. The 4.Ai, like its cousin the 4.A, offers a clean...
“This is my first review on headfi. I recently joined and although I love headphones and music, I don't have much technical knowledge. I was looking for a good pair of earbuds to use with my cellphone, as well as during workouts etc. This one fit my needs perfectly, had great reviews on amazon and wasn't very expensive. The package includes a carrying pouch, earpieces (S, M, L), earhooks ...” --sonomics
“ These seem to have fallen out of favor in the last few months. I don't know why. Maybe it's because they're not "audiophile" level gear. I mean, it works out in my favor because I got them on the cheap, but it's kind of sad for Munitio. I want to sing their praises from the rooftops personally. I would have been happy to have paid full price, and maybe a little...” --benzoylmethyl