Electronic Toy Parts Metal Internal Magnet Speaker 0.5W 8Ohm 40mm 4Pcs Product Name : Magnet Speaker;Power : 0.5W Resistance : 8 Ohm;Type : Internal Magnet Shape : Round;Magnet Diameter : 17mm/ 0.67" Size : 40 x 5mm/ 1.6" x 0.2"(D*T);Material : Magnet,Metal, Plastic Weight : 38g;Package Content : 4Pcs x Internal Magnet Speaker