ITEM NAME:2.5mm Noise Cancelling Monaural Headset/Earphone for Call Center Telephones Description: Magnet speaker to ensure perfect sound quality. Gold-plated contacts to ensure clear voice. Noise cancelling microphone, improve speech clarity. Dual speaker design, can shield noisy ambient noise. 2.5mm jack, compatible with most call center telephones, digital telephones, etc. Headphone head clips can be freely telescopic, moderate elasticity, comfortable to wear. Earmuffs, microphone cotton detachable design, convenient to clean. Specification: Line Length: About 2.8m / 9.19ft Package Includes: 1 Piece Headset.Noise cancelling microphone, improve speech clarity. Dual speaker design, can shield noisy ambient noise. 1 Piece Headset. Magnet speaker to ensure perfect sound quality. Earmuffs, microphone cotton detachable design, convenient to clean.