1 Year Local Warranty. Pre-Order Only. Lead time: 4-6 weeks. Customisation is available. Contact us for more details. This is specially designed for sound engineers and producers. 4 Armature Studio adopts 4 micro balanced armatures, a rich 3-dimensional soundstage, and a 3-way crossover circuit with independent frequency bands. Carefully adjusted by professionals, the high, middle and low three frequencies are balanced, thick, clear, and sweet. The headphone does not make any unnecessary modifications to the sound and presents every detail of the music to the greatest extent. Specifications Sensitivity: 106dB SPL/mW Frequency response: 20Hz-20000Hz DCR: 17Ω Impedance: 17Ω Armature units: 4 micro balanced armature Armature Noise isolation: 26dB Monitor plug: 3.5mm (1/8") connector Cable: optional Shell colour: optional Technical feature: 3 sound channels, 3 crossovers, natural restoring, superb music quality Classification: Standard 4SS Recommended for: Monitoring and music enthusiast