Fangrui Product Details Fangrui Product Details Fangrui Product Details Neodymium Magnet Speaker Ensures Sound Quality; Gold-plated Contacts To Ensure Clear Voice; Anti-noise Microphone, Improve Speech Clarity; Double Speaker Design, Can Shield Noisy Ambient Noise; Optional Quick Connection Cable (qd) To Protect The Interface Of The Telephone; Compatible With Most Call Center Telephones And Digital Telephones; The Headphone Clip Can Be Freely Stretched, The Elasticity Is Moderate, And The Wearing Is Comfortable; Earmuffs, Microphone Cotton Detachable Design, To Ensure That The Headphones Are Clean; Material: Plastic Color:black Size: 15*10*3cm Package Contents: 1 * Bilateral Headphone 1 * User Manual Only The Above Package Content, Other Products Are Not Included. Note: Light Shooting And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.