- Color: Black<br>- Material: Iron<br>- Diameter: 40mm<br>- Power: 3W<br>- Impedance: 4 ohm<br>- Great for speaker DIY project<br><br>                                                                                                                                Dimensions: 1.57 in x 1.57 in x 0.79 in (4.0 cm x 4.0 cm x 2.0 cm)<br />Weight: 1.06 oz (30 g)<br /><br />