Koss SportaPro On-Ear Stereo Headphones, 3.5mm Plug, Lightweight, Unique Folding Design, Black

Despite the odd looks: Extreme Quality and engineering with great sound in an ultra compact inexpensive head phones.
Sound quality:I directly compared this with the Sony MDR-ZX300AP Sound Monitoring Headphones (2x the price) and pair of Panasonic light weight headphones (1/2 the price). The Sony and this Koss had fantastic sound quality. Of the two the Koss was better, first it had greater clarity of sound and spoken word was more distinct and less muddy. Additionally this one was louder at he same volume setting. All else being equal a louder headphone indicates more money was put into the magnet and sound coupling efficiency– hinting at the good engineering. The slightly cheaper panasonics were no match in sound quality, compactness, construction quality, though they get good marks for being the lightest (and thus highly comfortable for casual listening)ergonomicsUnlike the typical modern style of headphones this one has a plain (adjustable) spring metal bar over the head. This was actually slightly more comfortable than the Sony for the simple reason it gripped my ears more firmly so the top bar did not have to sit on my head– something I find to be very uncomfortable. Now I’ve have more comfortable over the ear cans with padded head bars and also even more comfortable on ear ones as well but these were quite satisfactory while being much less bulky or heavy than heavily padded cansportabilityThe spring metal is not to make it cheap but is actually an engineering innovation. First, it’s adjustable and heavy duty. This is to support the feature that when you fold this thing up you can compress then head bar. it becomes a tight coiled spring and there are two little hooks on the ear peice hinges that hold it tightly coiled. The ear peices then hinge into this folded state and the whole thing fits in a the tiniest space I’ve ever seen for headphones with only two hinge points. (your typical folding headphones either have more fiddly hinges to break or are novelty items with fragile plastic swivel joints that won’t hold up to travel abuse in your backpack. others that use the same spring metal style are more flimsy and usualy cheap all over/)The only thing on these that looks flimsy is the foam ear coverings. They are thin, feel delicate and I expect I will tear them or they will oxidize and wear out. I see they actually sell new coverings so this is probably why.StylingNow the styling of these is definitely weird and combined with the metal head peice makes them look throwback if you set then next to a beefy Beats or Bose headphone. But I’d say the engineers defintiely triumphed here. It sounds good, it is rugged, it’s compact and it’s reasonably comfortable. The price is remarkably low for such quality.Conclusion:They put their money in these were it counted. They stole design styles from cheaper headphones but toughened them up and paired them with quality components. I really wasn’t expecting these to be better than the Sony monitors but they were.these of course can’t match the audio isolation of a quality branded over-the-ear noise canceling headphone but for $20 these are as good as you can get.

No es un audífono de alta gama pero suenan muy muy bienSon muy divertidosYo los uso con la diadema hacia la parte de atrás de la cabeza y me resulta muy cómodoLos bajos y medios son muy buenosQuizás falte un poco de aire , de detalle en los tonos altos pero eso es cuestión de gustosDe verdad por lo que se paga se obtiene un producto de altísimo valor

Estos son como los KOSS- KTX-PRO1 ya que utilizan los mismos diafragmas de titanio. Tienen unos bajos fuera de su clase, realmente impresionante. Hasta el día de hoy no he encontrado nada mejor.

Le acquistai nel lontano 2013 a 20,95 euro, nel frattempo ho acquistato cuffie della Sony, Philips, Beats, Shenaiser ma quando voglio ascoltare della musica al volo oppure devo portare con me delle cuffie poco ingombranti utilizzo sempre queste sporta pro della Koss.Sono molto pratiche, leggere e versatili il tutto con un ottimo audio sia per volume che per profondità del suono, insomma, il suono è davvero molto equilibrato.E’ possibile utilizzarle anche dietro alla nuca ad archetto, io le riacquisterei ad occhi chiusi, peccato che dopo 6 anni il loro prezzo sia raddoppiato.