... Speaker Sytem, Mobile Speaker with USB Input smart/portable design with seamless steel tube Fashionable Wireless Mini Speaker ... customized color4) Material-seamless steel tube+plasticMain Features1. Mini portable design with built-in 450mAh Lithium battery, unit size ... with Mobile Phones, MP3/4, Portable CD/DVD players, iPhone, iPad, iPod, Laptops, Netbooks, PCs, Portable Game Console, etc.13. Various ...