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The limited edition Grado Hemp Headphones are fashioned out of hemp and maple for an esoteric, if not unique, housing. These are on-ear headphones sporting a wideband frequency reproduction for audiophiles and music enthusiasts in homes, listening rooms, and acoustically controlled environments. The low-profile enclosures, cushioned earpads, and padded leather headband ensure comfort for long listening sessions. The open-back design reduces internal resonance and reflections to enhance transparency. The dynamic drivers are matched to 0.05 dB and produce a wide frequency response of 13 Hz to 28 kHz. With a 38-Ohm impedance, the Hemp headphones are well suited for use with mobile devices as well as dedicated headphone amplifiers.