uxcell 35mm Diameter Aluminum Shell Internal Magnet Speaker 16 Ohm 0.25W 2Pcs Product Name : Magnet Speaker;Power : 0.25W;Resistance : 16 Ohm Type : Internal Magnetic, Slim;Shape : Round Bottom Diameter : 20mm/ 0.8";Diameter : 35mm/ 1.4" Height : 9mm/ 0.35";Material : Aluminum, Metal, Plastic Weight : 23g;Package Content : 2 x Internal Magnet Speaker