ELECTRICAL RANGE: 220-250V AC
FREQUENCY RANGE: 50Hz
POWER CONSUMPTION: ABOUT 0.5-1.2W
SOUND PRESSURE: MAX 80dB
SOUND FREQUENCY: 15000-18000Hz
RADIATION ANGLE: 150°
EFFECTIVE AREA: 18-25² METER (180-250² FEET)

MODEL NO.: ST-23B
PACKING DIMENSION: L13.8cm x W6cm x H20.5cm
WEIGHT: 0.11KG