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“Box opened” suggests an essentially new, complete unit rather than a well-used example, and at £41 this is a genuine bargain. It sits well below the £63 25th-percentile figure from six recent sold comparables, versus a £177 median and £347 upper quartile, so the price leaves plenty of room for a sensible purchase even if the packaging has been handled.
The Retro Nano is a particularly enjoyable little Bluetooth DAC/amp: LDAC and aptX support, USB DAC operation, both 3.5 mm and balanced 4.4 mm outputs, useful physical controls, and a replaceable rechargeable battery. Its compact, playful design is a bonus rather than a gimmick, while the EQ and FiiO app add flexibility. Check that the battery, USB-C cable, lanyard and accessories are present, but at this price the opened box is a minor concern. The main limitation is modest battery life, not value.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Fiio, founded in 2007 in Guangzhou, China, emerged as a specialist in portable audio gear, initially crafting components like speakers for brands such as Meizu before launching its own lineup. The name blends "Fi" from hi-fi fidelity with "iO" symbolizing digital one's and zeros, evoking authentic sound and modern convenience, while its Chinese rendering "飞傲" conveys innovative vitality. From modest beginnings, the company expanded into a 15,000-square-meter industrial complex by 2022, solidifying its role as a prolific developer of music-centric electronics.
The brand excels across a broad spectrum of portable and desktop audio categories, with flagship strengths in high-resolution digital audio players (DAPs), USB DACs, portable headphone amplifiers, and in-ear monitors. Its portfolio also encompasses cables, desktop amps, and select speakers, prioritizing versatile, high-performance solutions for on-the-go and home listening without venturing into turntables or large-scale hi-fi systems.
Fiio occupies a commanding mid-tier position in the global audiophile market, renowned for delivering premium sound quality at accessible prices that punch above their weight. Praised by enthusiasts for reliability and value, it appeals to discerning buyers seeking refined portable setups over luxury excess, backed by worldwide distribution and a track record of user-acclaimed innovations.
See all Fiio listings on RADAR.
