Wired Headset Noise Reduction 3.5mm Connector Ergonomic Call Center Headphone with Microphone Feature: 1. ERGONOMIC: Customer service headphone with ergonomic design, stable and durable, the boom can be rotated 180 degrees, the microphone can be rotated 330 degrees, the sound output is more clearer calls. 2. NOISE CANCELLING: Call center headset has a built in voice noise reduction processor with ENC noise reduction technology, which uses intelligent voice algorithms to eliminate background noise. 3. ADJUSTABLE MIC POLE: Business headset microphone pole can be adjusted, can be freely bent inside and outside to achieve precise adjustment of the microphone position, suitable for everyone to wear. 4. MANGANESE STEEL HEADBAND: Office headphone with high quality manganese steel headband, stretch adjustable, adapt to the size of the head, arbitrary stretch does not scratch the hand, reduce pressure, easy to adjust. 5. 3.5MM CONNECTOR: Telephone headset using 3.5mm/0.14in connector, adapt to a wide range of cell phones, computers. Plug and play, easy to use, do not worry about the situation can not be matched. Specification: Item Type: Customer Service Headset Material: ABS Ambient Temperature: & 8209;10°C to +40°C Relative Humidity: 10% to 90% Atmospheric Pressure: 86 to 106Kpa Ambient Noise: ≤60dB(A) Sensitivity: & 8209;40±3dB(0dB=1V/Pa,at1KHz) Impedance: 2.2K Ohm Distortion: ≤5% Sensitivity: 100±3dB Package List: 1 x Customer Service Headset