Wired Headset Noise Cancelling Binaural Business Headphone with Single Directional Microphone for Customer Service 3.5mm Feature: 1. SMART NOISE REDUCTION: Wired Headset has a built in voice noise reduction processor with ENC noise reduction technology to eliminate background noise. 2. ERGONOMIC DESIGN: Business headphone designs adjustable ear plate, 190 degree rotation precise positioning, arbitrary adjustment, free bending. 3. ADJUSTABLE: Telephone headset adapts to the size of the head, and does not scratch the hand at will, reducing pressure, easy to adjust. 4. UNIQUE DESIGN: Customer service headset has soft, comfortable ear cushions that are removable. Single directional mic and the microphone bar is free to bend. 5. 3.5MM CONNECTOR: Customer service headset uses a 3.5mm connector for cell phones and computers, which is plug and play, easy to use. Specification: Item Type: Wired Headset Material: ABS Ambient Temperature: -10C to +40C Relative Humidity: 10-90% Atmospheric Pressure: 86-106Kpa Ambient Noise: 60dB(A) Sensitivity -403dB(0dB=1V/Pa, At1KHz) Impedance: 2.2K Ohm Frequency Range:200-12000Hz Distortion: 5% Sensitivity: 1003dB 3.5mm/0.1in Connector Built In Voice Noise Reduction Processor, Using ENC Noise Reduction Technology, The Use Of Intelligent Voice Algorithms, For The Voice Environment To Optimize The Sample Rate Conversion Equalization, Dynamic Range Control And Sound Signal Processing To Eliminate Background Noise Package List: 1 x Wired Headset