Ultra-lightweight in-ear headphones from iSINE series that sound and look like no others, featuring an innovative design without a care for the same old status quo of balanced armature or dynamic driver designs. They barely weigh 20 grams and contain all of the Audeze's exclusive patented technology including power enhancing high-grade neodymium Fluxor Magnets that nearly double the magnetic driving force on the large, ultra-thin planar 30mm diaphragms with patented Uniforce voice-coil technology that delivers the most accurate in-ear headphones experience ever. The distortion (THD) is less the 0.1% overall even at high volumes, an amazing achievement for in-ear headphone designs. The headphones are engineered for superb long-term comfort and deliver an immersive, dynamic music experience, and were designed in close cooperation with Audeze's strategic partner Designworks, a BMW Group Company. A 1.5m long audio cable with 3.5mm stereo plug input and 2-pin plug output is included. Maximum SPL: >120 dB. Frequency response: 10 Hz-50 kHz. Impedance: 16 Ohm. Dimensions: 31 x 35 mm.