This small speaker will be your best choice in DIY speakers.it will work well for home audio-visual equipment and other speakers.Unique design, adopted well-performed magnet. Specifications:Speaker Outer Diameter: 52mmImpedance: 4 OhmRated Power: 3WScrew Hole Distance: 42mm Speaker Height: 25mmMagnet Diameter: 45mm Package Includes:2pcs x Small Speaker