Go-Rock CUBE Stereo Speaker (TRMS03SB) Small in size, Big In Bass and Volume! We now live in a World where we can enjoy our music from a variety of sources: iPhones, iPods, laptops, mobile phones, therefore would it not be cool to have a speaker that enhances this pleasure? These stylish portable speakers are palm sized yet big in bass and volume. Our speakers have a patented retractable cable system that prevents knotted cables with other electrical equipment whilst travelling and a high powered rechargeable built in battery that gives hours of quality music on a single charge. If you are looking for speakers with style, portability and functionality then "Go-Rock". What else do you really need for great sound quality whilst out and about? Features Optimal Audio Quality Even though it has small form, dont misjudge the quality of the sound from this speaker. You can enjoy your favorite music, movie and games with optimal sound quality. Mini Speaker Design It design to look like a Box, with built in magnetic lock to secure two piece speakers into one when not in use. It have datented design for single retractable cable built in, patented design for extendable resonance of the bass box technology enables stronger effect, patented retractable mechanism in side for easy cable retraction and storage. Compatibility compatible with many device that have 3.5mm audio jack. Apply with all music player , NB / PCs, iPod and iPhone.