The Røde WS-Chroma is a microphone sponge set containing a blue and green microphone sponge compatible with the Videomic NTG microphone. With their use, the microphone can be placed closer to the sound source during the bluebox shots, even in the image, if necessary to make an optimal signal-level audio recording and then cut the microphone from chroma-Keying, thanks to the color of the sponges.