The GTR-400 packs 90 watts in a compact, portable Bluetooth stereo speaker. We’ve built the GTR-400 with advanced components that deliver a precise and accurate response throughout the complete frequency range. Feel like going old school? Use the Aux in to connect your turntable, DJ mixer or any other playback source. Feel like Aerosmith? Plug in to one of the two XLR mic and guitar inputs with built in Reverb control. Our GTR-400 is a throwback to the days of vinyl and Rock-N-Roll and its analog interaction knobs give you complete control over your music. Perfect for the bedroom or living room…anywhere you want to travel back in time with music, just turn on the GTR-400.