POWERSUPPLY:BATTERY(AA1.5V*2),
DC 3.0V(OUTPUT 3V,300-800mA)
SPEAKER UNIT:2W*2
OUTPUT POWER:2W*2  4Ohms(1KHz 10% THD)
FREQUENCY RESPONSE:275Hz-20KHz                              
PRODUCT SIZE:12.5*4.5* 15.5CM