CA-1201 USB CAR SUBWOOF Round design 220V 12''subwoofer+treble USB/SD amplifier Product name: CAR SUBWOOFProduct model: CA ... 350W Rated impedance: 40hmFrequency response: 28Hz-3.5 KHzSpeaker unit: 12''Mega bass+treble2. Package: six pieces in a cartonPacking Size ... 1 speaker, stage speaker, DJ speaker, speaker cone 4. Our subwoofer speaker,2.0 speaker, speaker cabinet, laptop speaker, amplifier speaker ...