Alat Bantu Dengar OM-188

-	Maximum saturated output	128 -+ 4 dB
-	Maximum gain	48 -+ 5 dB
-	Harmonic distortion	15% ( < 1000 Hz )
-	Haemonic distortion	10% ( > 1000 Hz )
-	Equivalent noise input	< 32 dB
-	Working current	< 8 mA