Looking to upgrade both the lighting and sound quality of your dslr or camcorder footage rotolights sound and light kit is an all in one fuss free upgrade consisting of a unidirectional condenser microphone with 40hz 20 khz response and a cool running flicker free 100w equivelant led array with adjustable colour temperature both units are battery powered for additional freedom and convenience and the mic fits nicely into the rotolight resulting in a tidy professional looking package