* SIVGA SV021 pro Hi-Fi closed-back dynamic headphone.Deep bass, smooth vocals, brilliant treble.

* 50 mm aluminum diaphragm dynamic driver. Five-layer composite diaphragm engineered for an ideal balance of rigidity and damping.

* Ultra-fine black copperaluminum alloy voice coil significantly improves driving efficiency and detail resolution.

* Precision-machined ergonomic support, adjustable design for stable support and balanced pressure distribution.

* OFC detachable cable, Oxygen-free copper ensures low-resistance signal transfer with minimal distortion and natural, detailed sound.