This call center headset helps you offer better customer services. Noise cancelling function helps isolate noise to make sure a super clear sound. And the stretchable headband provide you with a comfortable wearing. Furthermore, speaker volume can be adjusted. Suitable for different situations. Features: Noise Cancelling - The call center headset comes with noise cancelling function to keep background noise outside to create a clear communication. Comfortable Wearing - Sretchable headband gives a comfortable wearing without no fatigue or pain after long time wearing. 1.6m Long Cable - 1.6m super long cable allows you to take files that a little far away from you while answering a call to solve problems for customer more quickly. Universal Compatibility - This Telephone Headset with microphone can be plugged into a professional call box, VOIP net call and other telephones. Super Durable - Precision design and high quality material make this call center headset very durable and reliable. Specifications: Product type: Call Center Headset Microphone: YES Impedance: 150Ω Cable length: 1.6m Headband: Stretchable Headphone cable material: PU Suitable: For professional call box, VOIP net call and other telephones. Plug: Crystal RJ9 plug Package size: approx. 19 * 14.2 * 3.8 cm/ 7.5 * 5.6 * 1.5 in Package weight: 188g/ 6.6oz Package List: 1 * Call Center Headset 1 * English User Manual