Feature:1. Suitable for 3.5mm interface devices, ideal for Skype chat, business, call centers, conference calls, online courses, 330 rotatable head, 330 rotatable microphone boom, to meet your different needs.2. Wideband sound telephone headset enables natural listening experience, features noise canceling microphone to reduce background noise, acoustic shock protect your hearing.3. Human engineering design with soft leatherette ear cushions, comfortable wear. Adjustable headband, suitable for different head sizes, earmuffs can be rotated.4. Lightweight and strong design, unibody headband construction, easily adjust the headset volume up/down, mute/unmute the microphone, reliable plastic parts.5. The reinforcement line is designed with for Kevlar, withstanding harsh environments and prevent office chair wheels and sharp objects for daily use.Specification:Item Type: Binaural HeadsetMaterial: ABSApplication: Applicable to 3.5mm interface devices, ideal for Skype chat, business, call centers, conference calls, listening and speaking, long-speaking, online courses, web seminars, etc.Rotatable Head Card 330Rotatable Swing Arm 330Speaker Parameters:Sensitivity: 1053dB (At 178mV 1kHz)Voice Coil Impedance: 15015 (1kHz)Frequency Characteristics: 100Hz-10kHzDistortion: 5% (At 178mV 1kHz)Microphone Parameters:Directivity: UnidirectionalSensitivity: -402dB2.0V, 2.2K, 1kHzDistortion: 5% (At 4.5V 2.2K 1kHz)Frequency Characteristics: 200Hz-6kHzCurrent Consumption: 100-500A.Package List:1 x Binaural Headset1 x Manual