HomeSoundTower100Specifications Power output: 120W Main Channel: 2.75",3Ω / 4x15W 16-corefull frequency speaker Main Channel: 1",4Ω / 10W antipressure silk membrane treble horn Subwoofer: 5.25" ,8Ω / 60W 30 core super bass Connections Bluetooth 3.0 Music system NFC USB port and TF card reader 3.5 mm line-in jack Accessories Manual Remote control Power adaptor