Uber Boom Ultra is the perfect portable Bluetooth LED speaker come rain or shine. Whether you are playing basketball, skateboarding in the park, hanging at the beach, or getting caught in a sudden rainstorm while camping, this high-power 80-Watt boombox, rated IP66, is water-resistant and sandproof! Loaded with features, the Uber Boom Ultra has dual 3.5" woofers that beat-sync their glow in multiple colors, while ION's Bass Boost feature enhances the overall bass response. Uber Boom Ultra packs a powerful built-in rechargeable battery, that supplies up to 12 hours of use on a single charge and can be recharged through any USB outlet including power banks, laptops, wall outlets, etc. Plus, Uber Boom Ultra has a USB/SD card playback feature so you can conveniently play material recorded on other devices. For fun adult or kids karaoke parties, use the 1/4" Microphone input to connect your mic and be a karaoke star! With the ION Sound XP app, available from your preferred app store, take total control of audio and lighting functions. Uber Boom Ultra also provides hands-free call answering with a built-in microphone. Indoors or outdoors, this portable Bluetooth boombox speaker will put the ‘boom boom' into your music!