Enjoy powerful sound anywhere Enjoy deep, punchy sound wherever you like with your EXTRA BASS speaker. Dual passive radiators work together with full-range speakers to enhance low-end tones, giving bass a boost. Where will you take yours? Whether you’re camping with friends or relaxing in the park, the compact and lightweight SRS-XB23 fits into your plans as easily as it fits into your bag. X-Balanced Speaker Unit Developed by Sony, the X-Balanced Speaker Unit achieves high sound quality and powerful sound pressure for a richer, deeper, more rewarding listening experience. Mica Reinforced Cellular speaker cone and dust cap The rigid and lightweight Mica Reinforced Cellular (MRC) speaker cone and dust cap contributes to the sound quality. Side passive radiators The layout of the side passive radiators has been optimised to reproduce clear bass sound. Dustproof, waterproof and washable With an IP67 rating, you can take your speaker to the beach, the forest, the desert – the SRS-XB23 will keep on playing, no matter how dusty the surface. It’s waterproof and saltwater resistant too – no worries by the sea or the pool – and there’s no problem washing it either .