Audio-Technica ATH-CKS770 WH Solid BASS in-Ear Headphones, White

Equipped with a newly developed Φ0.5 inch (13 mm) DUAL MAGNETIC-FIELD DRIVER Innovative deep bass regeneration with sophisticated strong magnetic force design and vibration dampening structure Dual Magnetic Field Driver Two opposing magnets create the next fusion point for maximum magnetic power. The increased magnetic forces guide the powerful and precise operation of the large diameter driver to create a tight and rich low range Multi-transition vibration version for deep bass playback Three-dimensional analysis disperses unnecessary resonance points By maximizing the effective vibration area, you can achieve deep bass playback beyond the diameter of the driver Aero-Based Bending System Vents in the best position according to driver characteristics Optimized air spring inside the housing for better bass output Made of solid aluminum encrogers with high hardness