TOOGOO(R) 20mm External Magnetic Type Round Slim Plastic Shell Speaker 8 Ohm 0.25W 2 Pcs Product Name : Magnet Speaker;Power : 0.25W;Resistance : 8 Ohm Type : External Magnetic, Slim;Shape : Round;Bottom Diameter : 15mm/ 0.59" Diameter : 20mm/ 0.8";Height : 7mm/ 0.28" Color : Black, Clear;Material : Aluminum, Metal, Plastic Weight : 14g;Package Content : 2 x External Magnet Speaker