Brand Name: LenovoStyle: Wired in-ear headphonesVocalism Principle: DynamicOrigin: Mainland ChinaMaterial: ABSMaterial: LeatherHigh-concerned chemical: NoneCommunication: Wireless+WiredVolume Control: YesCategory: Earphones & HeadphonesCertification: CECertification: FCCNumber Of Drivers: 2Plug Type: Line TypeImpedance Range: up to 32 ΩHeadphone Pads Material: Synthetic leatherActive Noise-Cancellation: YesSound Isolating: YesWaterproof: NoFrequency Response Range: 20 - 20000Wireless Type: BluetoothLine Length: 0Package List: User ManualPackage List: Charging CableControl Button: YesCodecs: AACCodecs: sbcDriver Diameter: 40Sensitivity: 96Is wireless: YesConnectors: 3.5 MMEarcups Type: Semi-openBluetooth Version: 5.0Total Harmonic Distortion: 1Support Memory Card: NoFunction: Common HeadphoneFunction: HiFi HeadphoneFunction: SportWith Microphone: YesFeatures: WaterproofFeatures: With microphoneFeatures: Active Noice CancellingFeature 1: fone de ouvidoFeature 2: Cordless earphoneFeature 3: fone sem fio bluetoothFeature 4: bluetooth earphonesFeature 5: fone de ouvidoFeature 6: Wireless Bluetooth headset