professional disco speakers "USB/Card Reader,FM Radio Function Output Power ... , line array speaker, professional studio speakers, professional concert speakers, professional sound systems speaker, professional disco speakers, mini speaker, car speaker, portable ... professional Item NO: YM-1026 stage speakerMaterial: WoodenPower: 80Wx2 Speakers Unit: 10"Midrangex2PCImpedance:4-8Ω S/N: 85dB Separation ...