Coby CV135BLK DJ Style High-Performance Stereo Headphones, Black 40mm Neodymium Driver Units In-Line Volume Control Swivel Ear Cups Single-Sided Cord Gold-Plated 3.5mm Stereo Plug DJ Style High-performance 40mm neodymium driver units deliver deep bass sound Swivel ear cups for single-sided monitoring Single-sided cord minimizes tangles Gold-plated 3.5mm stereo plug