FiiO has launched its first planar magnetic headphone, the FT5, with 90 mm drivers and an open-back design. It has a high sensitivity and 36Ω impedance, allowing it to be driven easily by portable devices. The magnesium aluminium alloy construction, included leather case, 2 pairs of earpads and 4 types of audio plugs make it a premium proposition, but at a relatively reasonable US$449 price.