Product Description Specification: Driver diameter: Enhanced 50mm Impedance: 20±15%Ω Sensitivity：115±3dB Frequency range：20Hz-20KHZ Mic sensitivity：-38±3dB Mic impedance：2.2kΩ Directivity: Omnidirectional Headset jack: 3.5mm 4Pin What's in the box: 1. Anivia AH28 Black...