Impedance:8 ohm +/- 20%
Fo :750Hz +/- 20%
Sensitivity:107 +/- 3dB / 100mv (R mode)
Sensitivity:83 +/- 3dB at 2KHz at 894mv(L mode)
Frequency range:300~3.0KHz
Rated Power:0.5W
Max Power :0.8W
Contact type :PCB
Dimension:φ15mm * H 3.75mm ( Working Position)

standard describes the requirements for loud speaker