1、Noise Cancellation: Single ear wired headset adopts broadband noise cancellation capability, which can filter out medium and high frequency noisy noise, easily restore the call effect and keep the sound quality more clear. 2、Precise Positioning: Call center headset adopts ergonomic design, microphone pole can be rotated 330 degrees, precise positioning in the most suitable position to ensure the sound quality of the call. 3、Hearing Protection: Single ear wired headset when the sound reaches 120 decibels, the human ear will feel pain; this product can eliminate the sudden high volume of noise over 118 decibels. 4、Protein Leather: Telephone headset with simulated protein leather earcups, soft and light without heavy feeling, wear adaptive ear contour. 5、Aesthetic Appearance: Communication headset with black carbon steel grain support arm design, more three dimensional, texture classic more beautiful. Item Type: Single Ear Wired Headset Material: ABS, Protein Leather Speaker Unit: Moving Coil Neodymium Iron Shed Magnetic Horn Horn Outside Diameter Size: Approx. 28mm/1.10in Speaker Frequency Response: 150HZ~4.5KHZ Speaker Sensitivity: 113dB±3dB(at1KHz1mw) Horn Impedance: 150Ω±5% Speaker Distortion: <1% Microphone Directionality: Single Pointing Microphone Frequency Range: 50HZ-3.0kHZ Microphone Sensitivity: -44±3db 1 x Single Ear Wired Headset