Have you ever wanted a real portable PA system that sounds great and really works?  Just connect the JB 6BP battery pack to your JB 6Portable PA and now you can use it almost anywhere!  The JB 6BP is a 3 Amp Lithium-Ion rechargeable battery pack that will give you 4 hours of operation per charge.  It even has a USB output so you can charge your phone in an emergency.