FiiO Electronics Technology Company, Ltd., or simply FiiO, is a Chinese electronics company founded in 2007 that primarily manufactures audio equipment.

[2] Its products include portable music players, audio amplifiers and DACs, earphones, as well as various cables and accessories.

FiiO was established in 2007 and has experience in researching and developing portable music products of different and sell FiiO-branded products through sales agents worldwide.

The brand name FiiO is composed of Fi(fidelity from HiFi) and iO(number 1&0).

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