The GTR-300 packs 60 watts in a compact, beautiful, portable Bluetooth® stereo speaker. We’ve built the GTR-300 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 and crank it up! Built in reverb adds life to your guitar or voice. Our GTR-300 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-300. Durable Retro Styling. Don’t let its size fool you. GTR-300 speaker features class D amplifiers that fuel its tweeters and subwoofer, for a sound that is nothing short of large. With a clean retro styling. Customize Your Sound. Bass, treble and volume control allow you to sculpt your sound