ITEM NAME:2Pcs 3W 4 Ohm Round Magnet Type LCD Ad Player Speaker Loudspeaker 50mm M7Z3 2Pcs 3W 4 Ohm Round Magnet Type LCD Ad Player Speaker Loudspeaker 50mm M7Z3 Product Name : Magnet Speaker Power : 3W Resistance : 4 Ohm Magnet Size : 22 x 5mm/ 0.87" x 0.2"(D*T) Total Size : 50 x 18.5mm/ 1.6" x 0.72"(L*W) Package Content : 2 x Magnet Speaker Shape : Round Material : Metal, Plastic, Magnet Weight : 52g This internal magnet speaker is designed with metal shell. Application: mini speakers, music player, doorbell, computer, multimedia speakers, etc. Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/-1-3 cm..Power : 3W. Resistance : 4 Ohm. Magnet Size : 22 x 5mm/ 0.87" x 0.2"(D T).