Go anywhere with full, crisp sound in a lightweight, stylish design. The Sony SRSXB23B is IP67 waterproof, rustproof, dustproof and shockproof, with up to 12 hours of battery life, so your music never gets left behind. Keep the good times going with super-efficient USB-C charging, and control sound settings with the Sony | Music Center app. Enjoy the same song, multiplied, with Party Connect. 6 Connect up to 100 wireless speakers with BLUETOOTH technology and the music and lights sync-up so everyone dances to the same beat. Set a random pattern or set the lights to blink in a circle. Unlike the circular diaphragm in a conventional speaker unit, the newly developed X-Balanced Speaker Unit in the XB23 features a non-circular diaphragm. This not only maximizes the area of speaker diaphragm, increasing sound pressure for more punchy bass it also reduces driver excursion while maintaining the same sound pressure, resulting in less distortion. Meanwhile, the units off-center design and optimized weight balance help to enhance clarity and widen the sound stage.