SD-152B

Model                        SD-152BRated Voltage                1 mVOperating Voltage    

speakers, buzzers,

speakers, buzzers,

Model                        SD-152B

Rated Voltage                1 mV

Operating Voltage        10 mV

Sound Output at 10cm (dB) 93 dB

Rated Impedance                150 Ohm

Frequency Range                300 ~4000Hz.