Earsonics -Velvet Premium Signature In-Ear Headphones (Black) 3 TRANSDUCERS PER SIDE - 3 channels, three listening positions. Technical challenge, velvet offers 3 different signatures to meet all tastes: audiophiles, musicians COMFORT FIT - beveled cannula profile with an innovative waveguide that combines comfort and maximum sound output DESIGN - A contoured look and a pleasant touch achieved thanks to the carefully selected noble material INCLUDES - Velvet with replaceable cable, 8 silicon tips, 4 foam tips, 1 cleaning tool, 1 cleaning case, and instruction manual. SPECS - Sensitivity: 119 dB/mW, Frequency Response: 10 Hz -20 kHz, Impedance: 31,5 to 41,5 ohms, Driver: 3 ways with HQ tunable crossover