MODEL??	FBF29-4
DIMENSION??	29mm  x  7mm
VOICE COIL IMP??	8 ohm
SOUND PRESSVRE LEVEL?¡§S.P.L????	86 dB
RESONAT FREQUENEY??	800 Hz
EFFECTIVE FREQUENEY??	fo-18000 Hz
NOISE POWER??	0.25 w
MAGNET SIZE AND ASSEMBLY??	21mm Ferrite