Enjoy your favorite music wirelessly nearly anywhere with the black Sony SRS-XB33 Portable Bluetooth Speaker. With Bluetooth wireless technology, the SRS-XB33 can stream audio from your smartphone or tablet, and the built-in battery lasts up to 24 hours in normal mode or up to 14 hours in EXTRA BASS mode. The speaker’s IP67 dustproof and waterproof rating allows safe use on the beach, by the pool, or nearly anywhere.Dual passive radiator works together with the two full-range drivers to enhance low-end tones, boosting the bass output.With its IP67 rating, you can take the SRS-XB33 to the beach, forest, desert, oceanside, poolside, or wherever you like. You can even wash it with water.