X-mini II Capsule Speaker - The best just got better. The award-winning X-mini II Capsule Speaker introduces a larger 40mm driver to project richer and fuller sounds resulting in superior end-user experience from its innovative capsule design. Be it for individual or group entertainment, the X-mini II Capsule Speaker is the perfect audio enhancement for any music or video player of your choice. Playback time tripled to 11 hours for longer, superior on-the-go audio Not only does the new design deliver unsurpassed audio quality, it now performs even longer. Three times the capacity of its predecessor, the X-mini II Capsule Speaker comes with a built-in high capacity rechargeable battery capable of sustained output for 11 hours of nonstop audio pleasure. Modular "Buddy-Jack" design: connect a row of X-Minis II for jaw dropping audio. This all new system enables you to connect one X-mini II Capsule Speaker to another, capable of forming an almost endless, daisy chain-of self-powered, bass-enhanced portable speaker system. With this feature, you can now combine your X-mini II Capsule Speaker together with your friends to hold a spontaneous party anywhere you go. Built-in retractable 3.5mm audio cable offers hassle-free portability.