qkz/ck8 in-ear double-motion running game music headphones hifi earphones hi-res audio

item no.: qkz-ck8type: earplugsheadphone type: in-ear headphonesheadphone output source: hifiplug diameter: 3.5mmplug type: straight typewhether wireless headphones: wired headphonessound principle: dynamic circlefrequency response range: 20-20000 (hz)impedance: 8sensitivity: 100 (db)distortion rate: 1 (%)wire length: 1.2 (m)earplugs / earmuffs material: siliconeheadphone cable material: tpeweight: 50 (g)packing list: earphones *1 earmuffs *1 clip *1