Named after the Sanskrit word that literally means "beautiful," the HIFIMAN Sundara Open-Back Planar Magnetic Headphones are designed to deliver a detailed and natural sound. They are easily powered from a wide variety of audio sources including smartphones, moderate-power desktop amplifiers, portable digital audio players, and more, in the comfort of your home or on the go. Made of proprietary, light, and high-tensile material, the Sundara's ultra-fine diaphragms produce a wide frequency response of 6 Hz to 75 kHz with fast transient response, low distortion levels, and high dynamic range. The hybrid headband design and gently beveled earpads evenly distribute the headphones' weight around your head to provide a secure grip and a comfortable fit for long listening sessions. The Sundara headphones ship with a detachable 4.9' cable terminated with a 3.5mm plug. FEATURES Planar Magnetic Drivers Open-back, circumaural headphones with large planar magnetic drivers, can be powered from a wide range of audio sources Wide frequency response: 6 Hz to 75 kHz Fast transient response The detailed and natural sonic signature Ultra-Fine Diaphragm Made of proprietary, light, and high-tensile material Low-mass and ultra-fine diaphragm delivers low distortion levels and high dynamic response Hybrid Headband Design The ergonomic and comfortable headband is contoured to fit a broad variety of head shapes The headband evenly spreads headphone weight over your head The unibody yoke attaches the frame to the earcups making a seamless sweeping curve that is both elegant and functional Single-piece, metal construction is durable enough to withstand the rigors of modern urban life Symmetric Earcup Design Earcups and gently beveled earpads conform around your ear, distributing the weight evenly to offer a secure grip and a comfortable fit for long listening sessions Grilles Outer grilles provide the diaphragms with a sturdy, protective barrier without coloring the sound The glossy, jet-black finish contrasts with the matte black earcups Cable Includes a detachable 4.9' cable with a 3.5mm plug Crystalline copper wire provides low-resistance signal transmission and high mechanical strength for daily use Earcup Connection Sockets Sturdy physical cable connection via 3.5mm sockets on the left and right earcups Large contact surface for enhanced signal transmission