Headphone material: metalHeadphone category: mobile phone wire headset HIFI headsetWearing method: in-earHeadphone type: wired headsetPlug type: straight plug typeWhether to control by wire: YesCompatible platform: ANDROID iOSImpedance: 32ΩSensitivity: 99dB/mWFrequency response range: 20-40000HzHeadphone sound principle: ring-iron combinationConnection between the left and right cavities of the earphone: Wired connectionHeadphone and playback device connection method: wired connection