Enjoy big sound with the super-compact SRS-XB100 wireless speaker, offering powerful, clear sound, a waterproof and dustproof design, and up to 16 hours of battery life. The extra-durable XB100 is waterproof and dustproof with an IP67 rating. It's small enough to fit in a bag or cupholder, the XB100 also features a versatile strap to take with you wherever you go.