|Rated Voltage||3 V|
|Operating Voltage||2-4 V|
|Sound Output at 10cm (dB)||70 dB|
|Current consumption||90 mA|
|Operating Temperature (℃)||-20~+70 ℃|
|Storage Temperature (℃)||-30~+80 ℃|
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.