Model no.Yp1225a Operating voltage max25vp-p Current consumption max 8ma at 9vp-p/square wave/4.1khz Sound pressure level min 75db at 10cm/ 3vo-p/square wave/4.0khz Electrostatic capacity16000¡à30%pf at 1 khz/1v Operating temperature (¡æ)-40~ +120 Storage temperature (¡æ)-40~ +120 Dimension (mm) l 12 ¡á w 12 ¡á h 2.5