Delivering powerful sound in a pint-sized package, the XB13 EXTRA BASS Portable Wireless Speaker from Sony utilizes an array of audio technologies to deliver an expansive soundscape with a deep bass punch. The small form factor lets you easily take it with you in a bag or backpack or on walks using the included wrist strap. The durable construction is water and dust resistant, so you can bring your music, podcasts, and more inside, on the patio, by the pool, or at the beach. It has all-day power on a full charge and speakerphone functionality to make hands-free calls while your phone remains safely tucked away.