Natural fiber high damping dome membrane. Flat frequency response, could reach 20 KHz in high frequency range. Natural and detailed sound performance. High-performance magnetic structure. Ferro fluid cooled, heat-resistant aluminum alloy voice coil former, and aluminum voice coil wire coated with copper. High power handling, aluminum alloy die-cast front panel with high precision, and high density, having high linear sound pressure output level. Can be used as a tweeter of home hi-fi system.