... of paint, with USB , can connect an external 12V battery Specification Hi-Fi audio systemModel:OY18(POWER):100W*1(sensitivity):40-90db ... , 8Ω, active top of paint, with USB , can connect an external 12V battery, high-powerWeight: Gross weight:18kgNet weight:16kgPacking Size ... Quantity: 20'GP 318sets40'GP 624sets40'HQ 788sets Hi-Fi audio system