Specification: Item Type: Telephone Headphone_x000D_Material: ABS_x000D_Model: H360-USB-1_x000D_Color: Black_x000D_Type: Single Ear_x000D_Plug: USB Interface_x000D_Function: Call, Speaker Volume Adjustment, Microphone Mute_x000D_Scope of Application: Used for Devices with USB Interface_x000D_Speaker Parameters:_x000D_Sensitivity: 1053dB (at 178mV 1kHz)_x000D_Voice Coil Impedance: 15015 (at 1kHz)_x000D_Frequency Characteristics: 100Hz-10kHz_x000D_Distortion: 5% (at 178mV 1kHz)_x000D_Microphone Parameters:_x000D_Directivity: Single Point_x000D_Sensitivity: -402dB (2.0V, 2.2K, 1kHz)_x000D_Distortion: 5% (at 4.5V 2.2K 1kHz)_x000D_Frequency Characteristics: 200Hz-6kHz_x000D_Current Consumption: 100-500A Features: 1Noise Reducing: Noise reducing telephone headset with high definition microphone, the mic can be twisted at will, providing clear conversations even in noisy environments. 2Soft And Comfortable: Provide ultra light wearing experience, soft ear cushions and flexible headband, no burden design, to ensure long term wearing comfort. 3Multi Functional: USB plug, plug and play, no need to drive, this business headset supports speaker volume adjustment and microphone mute function, easy to use. 4Ultra Durable: The sturdy structure and ABS material ensure super performance and make it durable, enough headphone cord length provides mobile flexibility. 5Widely Applicable: It is suitable for devices with USB interface, and it is an ideal choice for home, office, call center, telemarketing, customer service, teleconference, etc. PackageList: 1 x Telephone Headphone