G1 Grimlock a Twitter: "#トランスフォーマー Music Label toyline. A definite Music Label reference, though, is the coloration of Soundwave's virtual form at the beginning of the episode: it's based on the line's "
Transformers, MP3 players in disguise • The Register
Working Soundwave MP3 Player : r/transformers
2 Takara Transformers Music Label Soundwave Mp3 Player Figure Spark Blu Version for sale online | eBay