Founded in 2012 as 'Rosetech Selsa' and rebranded to ROSESELSA around 2015, this Chinese hi-fi brand has emerged as an East Asian audio equipment pioneer based on Buddhist philosophy 'Amidst a sea of choices, I take but one.' Originally known as Rose Technics, the company embraces a 'small yet exquisite' ethos driven by the spirit 'Dare to be Different,' pursuing relentless innovation in audio technology. ROSESELSA specializes in in-ear monitors (IEMs) including QT9 MK2S, QuietSea, Star City 5 Pro, and QT9 Mk3, DAC devices like the RS9039 with ES9039Q2M chip, OPENFREE clip-on wireless earbuds, and over-ear headphones. The company constantly secured Top 1 on East Asian audio equipment charts and achieved remarkable sales revenue of CNY 162 million (US$22.5 million) during the 2025 618 Shopping Festival. Their exceptional headphone portfolio won multiple prestigious international design awards including Silver Winner MUSE Design Awards, New York Product Design Awards (NYPDA), and London Design Awards. Since launching their global expansion strategy in 2024, ROSESELSA actively serves key markets across Europe, North America, and Asia-Pacific, dedicated to delivering unparalleled original sound reproduction through intelligent technology and meticulous manufacturing.