Founded by Dr Fang Bian in 2005, HiFiMAN is a manufacturer and designer of audio devices including headphones, portable audio players, and amplifiers. The HiFiMAN brand is widely known for its quality acoustic products. Its most popular products include the HE-400 which are full-sized open back headphones and the RE-400 which is an IEM (In Ear Monitor). These two products are critically admired for their sound quality
HiFiMAN is also best known for their Planar-Magnetic headphones that feature innovative driver technology, but the company manufactures and designs in-ear drivers, which have also gathered a variety of awards.