Item Type: HeadphonesModel: H360D-QDMaterial: ABSColour: BlackType: BinauralPlug: QD quick plug interface, compatible with for BeienFunction: CallSpeaker Parameters:Sensitivity: 1053dB (at 178mV 1KHz)Voice Coil Impedance: 15015 (at 1KHz)Frequency Characteristics: 100Hz-10KHzDistortion: 5% (at 178mV 1KHz)Microphone Parameters:Directivity: Single PointSensitivity: -402dB (2.0V, 2.2k, 1KHz)Distortion: 5% (at 4.5V 2.2k 1KHz)Frequency Characteristics: 200Hz-6KHzCurrent Consumption: 100-500APackage List1 x Telephone Headset1NOISE REDUCTION: Built in high definition microphone, can be arbitrarily twisted, make your voice loud and clear. Provide clear dialogue even in noisy environments. The noise is smaller and the sound is clearer. 2ALL DAY COMFORT: Mobile headsets provide you with an ultralight wearing experience. The soft ear cushions and flexible headband will not cause any burden to your ears. 3ULTRA DURABLE: The earphones are designed with sturdy structure and materials to ensure superior performance and make them durable. The long headphone cord provides flexibility of movement. 4EASY TO USE: You can easily turn on/off answering at the touch of a button, meeting all your daily needs, plug and play. QD quick plug in interface, compatible with for Beien. 5SCOPE OF APPLICATION: The binaural customer service headset with microphone is a perfect choice for call centers, online courses, for Skype chats, conference calls, etc.