Electronic Toy Metal Case Internal Magnet Speaker 0.5W 8 Ohm 45mm 4Pcs Product Name : Magnet Speaker;Power : 0.5W Resistance : 8 Ohm;Type : Internal Magnet Shape : Round;Magnet Diameter : 16mm/ 0.63" Size : 45 x 5mm/ 1.8" x 0.2"(D*T);Material : Magnet,Metal, Plastic Weight : 42g;Package Content : 4Pcs x Internal Magnet Speaker