KB Covers X-Mini Capsule Speaker: * Larger 40mm driver delivers superb sound clarity * Playback time tripled to 11 hours for longer, superior on-the-go audio * Built-in high capacity rechargeable battery * Modular "Buddy-Jack" Design: Connect a row of X-Minis II for jaw dropping audio * Single piece design for ease-of-use * No retractable cord mechanism to break * Small, compact design * USB charged from your computer * Color: Green