The Gemini AS-15TOGO is designed for powerful stereo sound with a rechargeable battery in a convenient PORTABLE PAckage. Thanks to its integrated retractable handle and smooth rolling wheels, this feature-packed speaker has you covered whilst on the go. It combines the deep punch of 15 woofer with 2 high-frequency compression driver to create big, bold sound, regardless of its application. Best of all, you can customize sound with the professional audio mixer integrated right on the back panel.Features/Specifications: Advanced, multi-format media player which can read your music files on USB drives, SD cards, or Bluetooth Built-in 1,500 W peak amplifier for pristine audio quality Long-lasting battery powered loudspeaker with easy access battery meter and charging ports Linear frequency response between 50 Hz 20 Hz for the most accurate listening experience Inputs and volume controls for a wired microphone and a line level source Lightweight form-factor makes the speaker easy to take anywhere 15 high-excursion driver with 2 high-temperature voice coil Piezo high-frequency compression driver for clear, sparkling highs