uxcell 3W 3 Watt 4R 4 Ohm 50mm Dia Magnetic Type Aluminum Shell Speaker Product Name : Magnet Speaker;Power : 3W Resistance : 4 Ohm;Type : Internal Magnetic Shape : Round;Magnet Diameter : 22mm/ 0.87" Diameter : 50mm/ 2";Material : Aluminum, Plastic Weight : 32g;Package Content : 1 x Internal Magnet Speaker