Black silk diaphragm, NdFeB drive unit with neodymium magnet (magnetic strength is significantly enhanced compared to standard magnets), featuring a toothed pure aluminum heat sink for improved high-power handling. Structure: Neodymium magnet + silk dome tweeter + toothed pure aluminum radiator + ABS matte panel High-frequency components: Soft dome tweeter with neodymium magnet and aluminum heat dissipation design. Tested and tuned for balanced sound performance; delivers detailed and accurate high frequencies with good midrange integration. Suitable for pairing with woofers. Moderate sensitivity. Not recommended for use with speakers 8 inches or larger. Can be used as a high-frequency driver in larger speaker systems. Impedance: 6 ohm Power handling: 30W Color: Black Materials: Silk dome, aluminum, ABS matte panel Dimensions: Panel diameter: 52mm Height: 23mm Cutout diameter: 34mm Diagonal center hole distance: 45mm Panel thickness: 3mm Package includes: 2 x o Speakers Note: Other items not included. Note: Lighting and display differences may cause slight color variation between image and actual product. Measurement error allowed within +/- 1-3cm.