Application:Applied to mini box speakers, music player, doorbell, computer, multimedia speakers, etc.It's suitable for all kinds of sound source fabrication, the sound is clear and melodious without distortion. Specifications:Rated Power: 0.5WImpedance: 8 OhmMagnet Diameter : 18 mm / 0.71 inchSize: 50 x 12 mm / 1.97 x 0.47 inch (Dia * T) Package Includes:2 x Stereo Speaker