SOLID BASS BK Audio-Technica In-Ear Headphones, Black, ATH-CKS770

Dual Magnetic Field Driver. Two opposing magnets create a fusion point that maximizes magnetic force. This increased magnetic force drives the large-diameter driver with powerful precision, producing rich, firm bass. Multi-transition diaphragm dedicated to deep bass reproduction. 3D analysis disperses specific unwanted resonance points. By maximizing the effective vibration area, deep bass reproduction is achieved that exceeds the driver diameter. Aerobase bending system: Vents are positioned optimally to match the driver characteristics, optimizing the air spring properties inside the housing and improving bass output efficiency. Uses a robust machined solid aluminum enclosure