Features: l Patented Bass FX technology lets you apply a responsive bass boost by twisting the dial at the end of each ear cap l High-grade aluminum housing offers the finest top quality & durability over a long lifespan l Lightweight & durable rubber caps provide passive noise isolation l Remote in-line microphone with a precise sensor records clearer audio with less background noise l Switch between smartphone, tablet, or PC with the included gold-plated adapter l Tangle-free flat cable design for enhanced portability Specifications Earphones Driver 8mm driver Frequency Response 20 Hz-20 K Hz Impedance 20&8486; Sensitivities (@100 Hz) 119 d B ± 3 d B (bass on) 109 d B ± 3 d B (bass off) Max output power 20m W Cable Length 1.3m Connector 3.5mm gold-plated headphone jack Microphone Pick-up Pattern Omni-Directional Frequency Response 100 Hz – 10 K Hz Sensitivity -44 ± 4d B (at 1 K Hz, 1V/ PA) Signal to Noise Ratio 58d B or more