KZ CCA HM20 Earbuds with microphone CCA HM20 16-unit Hybrid Technology HiFi in-ear monitor earbuds with 50024s dual-combination BA*3 & 30019s BA*1 & 3rd  high-performance XUN-7 dynamic unit, 8-driver luxury configuration on each side comprehensive coverage of music highs mids lows, mids and highs with a vibrant sound texture and smooth and bright high-frequency extension sound clear and transparent more listenable, lows In the texture, cohesion, large dynamics, dive are made in all aspects of optimization, to bring immersive and powerful bass experience. Impedance: 22ΩSensitivity: 105±3dBFrequency : 20-40000HzPlug type: L-Shaped 3.5MMPin type: 0.75MM (C Pin)Cable type: Silver-plated cableMicrophone type: HD microphoneCable length: 120±5 CM ... more »