Brand Name: WPAIERStyle: Ear HookVocalism Principle: OtherOrigin: Mainland ChinaActive Noise-Cancellation: YesControl Button: YesCommunication: WirelessVolume Control: NoCertification: CENumber Of Drivers: 1Plug Type: NONEImpedance Range: up to 32 ΩModel Number: S109Headphone Pads Material: OtherSupport Memory Card: NoWaterproof: YesFrequency Response Range: 20 - 20000HzMagnet Type: OtherWireless Type: bluetoothLine Length: 0mPackage List: User Manual,Charging CableDriver Diameter: 10mmResistance: 32ΩSensitivity: 68dBIs wireless: YesConnectors: NoneEarcups Type: Semi-openBluetooth Version: 4.1Charging Method: CableSupport APP: NoWith Microphone: Yes