Franklin Electronics EVS-5000 ROADIE Amped Mobile Audio System Surface Resonating technology turns any hard flat surface into an audio sound system Accepts input from a variety of sources: Smartphone, iPod, PC, MicroSD or USB memory stick. Built-in Rechargeable Lithium Ion battery with up to 8 1/2 hours of battery life INCLUDES: Carrying case, USB power cable, Audio cable, Microphone cable, Top cover, User's guide Light-up display