... noise,low distortion small size, low voltage, small power consumption Audio monitor (It is for monitor and sound recording;small size ... , judicial, test room, meeting room, industrial production, military areas, etc.*This pickup also can be used in highway toll station when it is ... DC 3.3V-6V Current 2mA Operating Temperature 25°C~70°C Color Black Shell Material PVC Size L=14mm; D=4.2mm ...