Features 1.Noise Cancelling Communication - Neodymium magnet loudspeaker produces noise cancelling sound. Gold-plated contact makes communication very clear with no noise. Great noise cancelling function provides you a face-to-face effect. 2.Comfortable Wearing - 180 rotary earmuff and stretchable headband make it suitable for head of different sizes to give you comfortable wearing. No fatigue or pain even after long time wearing. 3.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. 4.Universal Compatibility - This call center USB headset can be plugged into computer telephone desktop box and other devices to achieve clear stable and smooth communication with no stuck or conflict. 5.Adjustable Volume - In-line button allows you to adjust volume freely to choose a perfect sound for hearing protection. Specification Description:Noise cancelling function and stereo Hi-Fi sound enable this call center USB headset to give you clear communications like fact to face thus achieving better customer service. And rotary earmuffs free adjustable microphone and stretchable band provide you with a comfortable wearing. Prevents you from fatigue and pain after long time wearing. Furthermore mute function helps you power on/ off microphone so quickly.Features:Noise Cancelling Communication - Neodymium magnet loudspeaker produces noise cancelling sound. Gold-plated contact makes communication very clear with no noise. Great noise cancelling function provides you a face-to-face effect.Comfortable Wearing - 180 rotary earmuff and stretchable headband make it suitable for head of different sizes to give you comfortable wearing. No fatigue or pain even after long time 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.Universal Compatibility - This call center USB headset can be plugged into computer telephone desktop box and other devices to achieve clear stable and smooth communication with no stuck or conflict.Adjustable Volume - In-line button allows you to adjust volume freely to choose a perfect sound for hearing protection.Super Long Cable - Super long cable up to 250cm/ 98.43in 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.Super Durable - Precision design and high quality ABS make this call center headset very durable and reliable. It will last a very long time.Specifications:Product type: USB Call Center Headset with MicrophoneCable length: approx. 250cm/ 98.43inMicrophone: YESImpedance: 150Suitable: For computer telephone desktop box other devicesPackage size: approx. 19 * 15 * 4 cm/ 7.48 * 5.91 * 1.57 inPackage weight: 195gPackage List:1 * Call Center USB Headset1 * User Manual Package List