The training magazine MAX power have now tested ZERO-TX and give them a 5/5 rating and also their award "good budget choice".
"They are currently the most affordable headphones in the world, and we have therefore chosen to award the ZERO-TX (as the first headphones ever) with our 'Good Budget Choice' badge and our warmest recommendations."
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Testsegrare i Der grosse Kopfhöhrer test 2025 - SUPRA NiTRO-X2
"NiTRO-X2 är vår klara testvinnare bland hörlurar. Den kombinerar suverän komfort med verkligt utmärkt ljud och smarta funktioner. Vi testade många bra modeller i vårt test, men SUPRA NiTRO-X2 sti...
Sound by Sweden || Powered by SUPRA – affordable premium headphones
In short, I'm very impressed – and I think the price is absolutely unbeatable for what you get. Honestly, I would have guessed that headphones of this caliber would cost twice as much. You get outs...
Sound by Sweden – Headphones of the Highest Quality
"We love the headphones from Sound by Sweden.Here, premium materials meet innovative technology, and the result is something you can hear! Sound by Sweden has many years of experience in developing...
Testproffs gives Sound by Sweden a rating of 9.5/10!
Testproffs tested our NiTRO-X and NERO-TX PRO, describing them as their new favorite earbuds and giving them a rating of 9.5/10! "Sound by Sweden has long experience in developing premium products ...
