Sound that Satisfies: MaxSound's audio experience is one that appeals to casual listeners and audiophiles alike. The advanced audio processing tech, larger drivers, and more powerful amplifier modules results in a fully articulate sound at all volumes. Bass that Booms: Small speakers usually give small sound. That's not the case with Tribit's proprietary XBass technology. At the press of the button, the bass is amplified to give those low-end bass lines depth and synth and acoustic drums tight punch. Seriously Waterproof: Portability is incomplete without the ability to weather the elements. With IPX7 waterproof, MaxSound Plus gives you the confidence to enjoy your music even in the most humid or wettest of conditions. Extended Playtime: Don't let a long daytrip stop you from bringing a soundtrack - with up to 20 hours of battery life, you can have the playlist going all day. Enjoy great music with the freedom of portability without the fuss of entangled power cords. Pair and Play: Move freely around with your smart phone, without worrying about dropping your music. MaxSound Plus wireless speaker offers an incredibly robust, secure connection and lossless wireless sound at a range of up to 100 feet.