In November 2020, DxOMark introduced a rating system, DxOMark Sound, for wireless speakers, based on factors including both lab tests using sound-level meters and calibrated microphones, as well as 20 hours of perceptual assessment. Customised music clips, created by DxOMark in collaboration with professional musicians and recording studios, include those in the styles of jazz, hip-hop, classical, pop, rock, Latin, electronic, and alternative genres.[31]