uxcell 52mm Dia Round External Magnet Speaker Trumpet Horn 4 Ohm 3W Product Name : External Magnet Speaker;Power : 3W;Resistance : 4 Ohm Type : External Magnetic, Slim;Shape : Round;Bottom Diameter : 45mm/ 1.8" Horn Diameter : 52mm/ 1.6";Height : 30mm/ 1.2";Hole Dia : 5mm / 0.2" Material : Metal, Metal, Plastic;Color : Silver Tone,Black Weight : 88g;Package Content : 1 x External Magnet Speaker