The story

Due to my job, I used to commute a lot by bus. I left my high-fidelity sound system at home in the living room, but I still wanted to listen to music on the bus. Not only because I love it, but also because it makes time pass faster. I always used in-ear monitors—small, practical, and they sound great.

I have wide ear canals, so it was difficult for me to find the right-sized tips. If I couldn’t achieve a deep insertion with the earphones, the silicone tips wouldn’t provide proper isolation. The memory foam tips fit nicely, but I didn’t like them because they killed the high frequencies. That’s when I started experimenting at home, on the kitchen table, with silicone tips filled with memory foam. I tried out various combinations and variations. Since I could only rely on my own hearing, I created tips that met my personal needs. I used wide-bore, slightly rigid silicone tips (which I purchased ready-made on the market). Only the wide holes allow flawless airflow from the earphone driver to the eardrum, except for earphones with stems of approximately 2-3 mm in diameter. Well, I already included adapters alongside the W: Wa (2-2.5mm) and Wn (3-4mm) so that they could also be used with narrower nozzles.

I integrated memory foam earplugs into the silicone tips for hearing protection. I developed a technology that I could apply through manual production on the aforementioned kitchen table. The silicone and memory foam worked together in perfect symbiosis! Symbio W was born! This was in the mid-2010s. I was proud of my creation, which I shared on various forums, and I started selling the Symbio W on major online marketplaces. Testers quickly discovered it as well. With several positive reviews, its popularity and demand grew exponentially. As I mentioned, the first version of Symbio W was slightly rigid. Users also pointed this out, which led us to develop our own silicone material and fill it with memory foam. This happened in 2023. I have many more ideas for the development of ear tips.