4-Pin RJ11 Monaural Corded Call Center Telephone Headset Headphone BKbrand new and high qualityMicrophone noise abatement, real sound body aircraftFlexible goose neck boomScrew headphone cable, avoid the use of the process woundThe use of flexible metal hose, MIC positioning accuracy, structural design, durable, comfortable to wear330 degree adjustable boom to ensure the best call qualityHearing for protection technology, care of the user's hearingAdjustable headband, acoustic shock for protection circuitSuitable for call centers. Excellent sound quality, light weightà ????????????????????????????????????????????????????? andà ????????????????????????????????????????????????????? durableCompatible use for: phone sales, telephone counseling services, insurance, hospitals, banks, telecom operators, enterprises etc.Connector: 4-Pin RJ11Size: app.15.6cmx13cm/6.14''x5.11''Cable length: 2Mà ????????????????????????????????????????????????????? (Max)Color: BlackQuantity: 1 PcNote:1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. à ????????????????????????????????????????????????????? à ????????????????????????????????????????????????????? à ????????????????????????????????????????????????????? à ????????????????????????????????????????????????????? à ????????????????????????????????????????????????????? à ????????????????????????????????????????????????????? à ????????????????????????????????????????????????????? 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!