Sony SRS-XB23 is a super-portable, powerful and durable Bluetooth speaker. It's compact, lightweight and easy to carry and comes with a convenient strap. The XB23 delivers powerful sound, enhanced bass and vocal clarity and is water, dust and rustproof (IP67), shockproof (up to 1.2m) and boosts up to 12 hours' battery life. To make your party even bigger, you can connect up to 100 compatible wireless speakers or stereo pair 2 of the same speakers.