|Rated Voltage||9 V||12 V|
|Operating Voltage||1-40 V||1-40 V|
|Sound Output at 10cm (dB)||85 dB||88 dB|
|Current consumption||3.5 mA||3 mA|
|Operating Temperature (℃)||-20~+60 ℃||-20~+60 ℃|
|Storage Temperature (℃)||-30~+70 ℃||-30~+70 ℃|
E-Sound Electronics Co., Ltd. was first founded in 1989 and became a high-tech company in 1994. Combining R&D and production, E-Sound is specialized in innovation of technology and service in electro-acoustic field.