The SRS-XB100 speaker provides powerful, clear, expansive sound in a small, portable and durable body. Despite its size, its packed with technology, including a Sound Diffusion Processor for spreading sound, a passive radiator for deeper bass and an off-centre diaphragm for a clear sound, even at high volumes. Powerful and clear sound with Passive Radiator and Off-Centre Diaphragm. Portable, water and dustproof and with a 16hr battery life Uses recycled plastics in both the body and the multiway strap. COMPACT, PORTABLE AND ECO-FRIENDLY: The XB100 is lightweight and super-compact. The multiway strap you can use to carry or attach your speaker. The product is made with recycled plastics and comes in plastic-free packaging.