Pebble BassX Extreme delivers remarkable sound and incredible build quality with 5W*2 50.8 mm Audio Drivers and A bass driver. Boasting an impressive 5-6-hour music playback. Its Rugged & IPX-4 Waterproof design, with a soft-touch silicone exterior that makes it easy to pick up and go. Choose from Black or blue to perfectly complement your style. With its effortless connectivity you can Play it wirelessly or wired (Via AUX Cable).