General description These 4Pcs 1.5 Inch Audio Speakers are designed for multimedia DIY sound projects. With a compact size and a mounting hole, they are perfect for home use and portable applications. Technical specifications Rated Power: 5W Rated Impedance: 4Ω Diameter: 40mm Color: Black Material: Metal Other information Package Contents: 4 x Speakers Note: Light reflection and different displays may cause the color of the item to differ slightly from the real thing. The measurement allowed error is +/- 1-3 cm.