This call center USB headset helps you communicate with customers clearly and conveniently for better customer service. Dual speaker design isolates noise effectively to give a face-to-face communication effect. And 330 rotary earmuffs make wearing so comfortable that you will not feel fatigue or pain after long time wearing. Furthermore, mute button allows you to power on/ off the microphone for more convenient use. Features: Noise Cancelling Communication - The call center headset comes with dual speaker design to keep noise outside to create a clear communication.Comfortable Wearing - Earmuffs support 330 rotation, which makes it suitable for head of different sizes to give you a comfortable wearing.Mute Function - A mute button in the in-line button allows you to power on/ off the microphone to make it more convenient to use.Hearing Protection - There is a in-line scroll, which helps you adjust volume freely to protect your hearing.Super Long Cable - Super long cable up to 2.5m allows you to take files that a little far away from you while answering a call to solve problems for customer immediately and more quickly.Universal Compatibility - This call center USB headset can be plugged into a computer, telephone, desktop box and other devices. Specifications:Product type: USB Call Center Headset with MicrophonePlug: USBCable length: approx. 2.5mEarmuff rotation: 330Microphone: YESImpedance: 150Dual speaker design: SupportSensitivity: 100dBHeadset cable material: PUSuitable: For computer, telephone, desktop box, other devicesPackage size: approx. 19 * 14.2 * 3.8 cm/ 7.5 * 5.6 * 1.5 inPackage weight: 198g/ 7.0oz Package List:1 * Call Center USB Headset1 * English User Manual