Gemini ES-15TOGO 15″ Active Battery Powered Loudspeaker. When you really want a party kicking, the ES-15TOGO is your best bet. The speaker nails everything a portable speaker should be – USB port, Bluetooth, SD slot, long battery, FM radio, etc., and punches deep bass, sparkling highs, and a lush midrange. The great-sounding ES-15TOGO is truly portable and can keep the party going for hours without a power outlet in sight. A perfect gig for on-the-move performers or presenters. Along with its booming sound quality and everlasting battery life, it has multiple connectivity options. XLR, ¼” guitar input with VCV power and RCA inputs with EQ controls and separate gains as well as mix output. Get ready to go wireless right out of the box with the ES-15TOGO. Thanks to its Bluetooth connectivity, you can take full control of the playback session using your Bluetooth compatible smartphone, tablet, or media player.