Rockville ROCK ANYWHERE is a rugged and waterproof portable Bluetooth speaker designed for a variety of uses. With 20 watts of power, it delivers loud and clear audio with thumping bass and crystal clear highs. The speaker has a long battery life of up to 30 hours at 50% volume, making it perfect for long days of listening. It is also IPX7 waterproof, so you can take it with you into the shower, pool, or on any outdoor adventure without worry.