Product Name: NiceHCK YD30 HIFI HD Mircophone Wired Earbud Brand: NiceHCK Model: YD30 Impedance: 32Ω Shell material: ABS Surface: UV varnish Cable Length: 1.2m±5cm Frequency range: 20-20000Hz Earphone sensitivity:113dB/mW Plug type: 3.5mm L plug Cable material: Copper color is OFC, silver color...