Fidue A83 FB Extreme Audio Special Edition In-Ear Monitor with 2.5mm Balanced Plug with 3.5mm Unbalanced Adapter for High Resolution Audio Players Tripe Hybrid Technology with Premium Dual-Balanced Armature & Exclusive, Dynamic Drivers,Clear Plastic Hard Carrying Case Included Excellent Divider & 3D Acoustic Chamber Design for Best Combination of Armature & Dynamic Silver-plated OFC Cable with Advanced Flat wire Technology Reference Class, Outstandingly Accurate Sound & Excellent Imaging Cable Fixed with 2.5mm Balanced Plug Version