This speaker be great choice for DIY speakers. It is suitable for home audiovisual equipment and other speakers. Unique design strong external circuit speakers for excellent performances. 4Ohm 3W highly power environmentally friendly speaker. 2inch waterproof speaker, enthusiasts level full frequency speaker, powerful and full low-frequency. Product Name: External Circuit Speakers Impedance:4Ohm Power: 3W Horn Diameter Size: 64mm Colour:Black Material:ABS Package Contents: 2 * Loudspeaker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.