MODEL??	FBF27-4
DIMENSION??	27mm  x  5.2mm
VOICE COIL IMP??	8 ohm
SOUND PRESSVRE LEVEL?¡§S.P.L????	80 dB
RESONAT FREQUENEY??	740 Hz
EFFECTIVE FREQUENEY??	fo-16000 Hz
NOISE POWER??	0.25 w
MAGNET SIZE AND ASSEMBLY??	16mm Ferrite