NudeAudio Move S Portable 3.5mm Universal Wired Speaker - Charcoal/Coral An integrated 3.5mm cable connects this portable speaker to any smartphone or tablet, including the iPhone, iPod and iPad The built-in high performance rechargeable Lithium-ion battery can be charged from any USB source The Move S wired has the ability to team up with a second or third speaker using the daisy-chain feature for a louder sound The thick, protective silicon sleeve design protects against knocks or bumps The Move S Wired is lightweight, compact and stylish making it the perfect portable speaker