uxcell 2Pcs 0.25W 16Ohm 29mm Round External Magnet Electronic Speaker Trumpet Product Name : Magnet Speaker;Power : 0.25W/1/4W Resistance : 16Ohm;Type : External Magnetic Shape : Round;Size : 29 x 10mm / 1.2" x 0.4" (D*H) Color : Black;Material : Aluminum, Metal, Plastic,Magnet Weight : 16g;Package Content : 2 x External Magnet Speaker