A portable apparatus ( so called " power station " ) used to draw DC ( direct current ) through a 4-pin XLR female socket - according to the output wattage to be drawn.The apparatus is powered by 1 to 4 V-lock Lithium ion batteries.It does not have any connection for electrical mains ( input ) and therefore no battery charging facility.It serves as a DC to DC converter.

Classification is determined by the Interpretation of GIR s 1 and 6 to the Combined Nomenclature and by the wording of CN codes ;- 8504 40, 8504 40 90 and 8504 40 90 20 .