USB Headset with Microphone Noise Cancelling & Volume Control Wired Headphones

SPECIFICATIONSBrand Name: RondafulStyle: NeckbandVocalism Principle: ElectrostaticOrigin: Mainland ChinaActive Noise-Cancellation: YesMaterial: plasticControl Button: YesCommunication: WireLessVolume Control: YesCategory: Earphones & HeadphonesCertification: weeeWireless Type: bluetoothLine Length: 1.00Driver Diameter: 0.00Resistance: 1.00Sensitivity: 1.00Total Harmonic Distortion: 1.00Max Output: 0.001Function: For Office