SANCHO SANCHO ELECTRONICS CO., LTD. SPECULATION SHEET Electrical specifications Model EM B-3008A Power (Nominal) 0.1 Watts Power (Maximum) 0.2 Watts Impedance 8+20% ohms Resonant Frequency 1200+ 150Hz Sound Level 0.1, 0. n Average at 0.8, 1.0, 1.2, 1. Kirghiz 80+3 dB Frequency Range Hz Housing Material Normal Cone Material Mylar Operating Temperature Range -20° to +60° C Storage Temperature -30° to +70° C Weight 8.