6D Surround Sound:Pu Composite Diaphragms With 14Mm Large Moving Coils In Addition To 6 Sound Quality Adjustment Holes On The Earphones Creates A Sense Of Ultra-High-Definition Sound Quality. Lateral In-Ear Design: We Have Adopted A Lateral In-Ear Design For The Junction Of Earplug And Audio Cavity, So That It Clings Better To Your Ear Without It Falling. Wire-Controlled Design: Comes With A Wired Control Unit For One-Button Control And Convenient Operation. Hd Microphones:Use Mems Microphones To Accurately Receive And Restore The Voice. Anti-Knotting Tpe Wire: Soft Touch, Anti-Knotting And Anti-Stretch Tpe Build Cable. Suitable For 3.5Mm Aux Interface Devices: With The High-Quality Gold-Plated 3.5Mm Aux Connector Makes It Universal To Most Devices.