Audio poarte 3.5mmEarphone shell PlasticSpeaker diameter Φ14.2mmImpedânsjeberik 16Ω±10%Frekwinsjeberik 20Hz ~ 20KHzGefoelichheid 101dB by 1KHzStandert rate 3mWYnput rate 5mWEarphone lingte 1,2 meter