Just picked up an amazing portable speaker, a JBL Flip 4, for only $83.00
It sounds incredible!! I picked it up for an upcoming ski trip. Using JRiver and JRemote, I have access to my entire digital library. With the Flip 4 I can use a 3.5mm cable or Bluetooth to play my music organized the same way I play music on the big rig. Ordering the Flip 4, I totally underestimated the quality of this speaker. You can even link two to play in stereo or up to 100 to play simultaneously. I honestly think 1 will be sufficient to enjoy good quality music over the next few days.
Can’t recommend this thing more. If you’re in the market for a simple, inexpensive, portable speaker, take a look.