Micro Speaker, Frame: plastic Dimension (mm): 10.0 x 20.0 - 14.0 x 22.0 Total Height (mm): 0.0 - 4.8 Impedance (ohm): 8 Rated/Max Power (W): 0.5/0.75 W - 0.8/1.0 W Resonance Freq (Hz): 750-1000 Applications: Notebook computers, computer mother boards and multimedia