SY490MV Call Center Wired Headset Wired Control USB Port With Microphone Telephone Operator Headphone Noise Canceling for Computer Phones Desktop Boxes Features: The microphone adopts noise reduction processing, which can most of the background noise. External microphone, 120° adjustment, clear sound pick up. The headphones are made of high-quality ABS and the earmuffs are made of soft and thick cotton, which is not only very but also very comfortable to protect your ears. The ergonomically designed head clip, retractable headband, more convenient to wear, safer to fit the face, safe to wear, not easy to fall off. This headset with a microphone has a wide range of compatibility. It can be plugged into computers, mobile phones, desktops, and other devices to achieve clear and smooth, undisturbed communication. Ultra-long cables allow you to answer the phone while carrying documents a little further away from you to solve problems for customers more quickly. Specification: Item: Wired Headset Model: SY490MV Material: ABS Color: Black Interface: USB 2.0 Horn diameter: Φ40mm Frequency: 20~20000Hz Sensitivity: 105dB Impedance: 32 Ω Rate power: 41mW Max power: 84mW Noise level: ≤-78dBA Distortion rate: ≤ 0.1% Stereo Crosstalk: ≤-52dBA Type: 3.5MM Port; Wired Control USB Port; 3.5MM+USB Port (Optional) Package Size: 16*13.5*5cm / 6.3*5.31*1.97in Package Weight: 100g / 3.53oz Package List: 1 * Wired Headset