The Sony Extra Bass Wireless Speaker is durable and portable. It comes with a specially engineered strap to make travelling with it easier. With EXTRA BASS, sound diffusion processor, this little speaker packs plenty of punch. EXTRA BASS offers plenty of punch Sound diffusion processor Multi way suspension Bluetooth connectivity Fast pairing Built-in mic Waterproof and dustproof with IP67 rating Battery life indication Up to 16 hour battery life Powerful sound with EXTRA BASS A passive radiator works together with a full-range speaker to enhance low-end tones, giving bass a boost. Goes wherever you go The durable exterior and multi-way strap makes this speaker ready for just about anything. Hang it from your backpack or on your wrist or even from a parasol when you’re out in the sun. The downwards-facing speaker will create a waterfall of music that engulfs you in the rhythm. Small speaker, big sound This little speaker packs major surround sound. The sound diffusion processor expands sound in any space, with its DSP technology. Epic party stamina Get up to 16 hours of battery life to keep the party going. A new battery indicator, right on your smartphone, lets you know when it’s time for a recharge.