He played your tapes, now let him play your MP339s This version of Soundwave is a real working audio player that still transforms just like the G1 figure Included with the figure are his standard weapons and three sets of hands clenched fists, gun-holding, and a pair that are posed as if he is pressing his own quotejectquot button. Soundwave is powered by a single Aaa battery that lasts for about 6 hours of continuous play time. His cassette door opens to reveal the miniSD card slot and the device can support up to 1GB miniSD card not included. Use Soundwave39s buttons in either player or robot mode, to access your music with playpausepower, next, previous, and volume updown. The player also includes a set of earbud headphones.