100% brand new and high quality Microphone noise abatement, real sound body aircraft operator Flexible goose neck boom Screw headphone cable, avoid the use of the process wound The use of flexible metal hose, MIC positioning accuracy, structural design, durable, comfortable to wear 330 degree adjustable boom to ensure the best call quality Hearing protection technology, care of the user's hearing Adjustable headband, acoustic shock protection circuit Suitable for call centers. Excellent sound quality, light weight and durable Compatible use for: phone sales, telephone counseling services, insurance, hospitals, banks, telecom operators, enterprises etc. Connector: 4-Pin RJ11 Size: app.15.6cmx13cm/6.14''x5.11'' Cable length: 2M (Max) Color: Black Quantity: 1 Pc Note: 1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!