49mm x 45mm Portable Speaker Unit for Bluetooth Speaker Diy 4ohm 5W Home Audio loudspeaker repair parts Sound good

NOTE: 1.The middle interface is for decoration, just connect the positive and negative terminals on both sides. The wide one is + and the narrow one is-.2.Some speaker unit magnets are oxidized, but it does not affect normal use. This is the end of the inventory and will be shipped randomly.Description:Product name: 1.75 inch full range speaker unitProduct size: 49mm * 45mmOpening hole size: 37mmHeight: 28mmDiagonal screw distance: 50mmCollar hole distance: 36mmImpedance: 4 ohmRated Power: 5WFrequence range:150hz-20khzFeature：Rubber edge,neodymium magnetic, 20 mm large voice coilSuitable:for bluetooth speaker diy,flip 4 speaker replacementPackage:2pcs Speaker unit