Amazon is now offering the Ultimate Ears Wonderboom 4 Portable Bluetooth Speaker in black for $69.99 shipped. That’s $30 less than what you’d usually pay for it, so you’ll save a good amount of money by cashing in on this deal today. This fairly new portable Bluetooth speaker is now fetching $10 less than our previous mention from earlier this year in July, dropping down to a new Amazon low. It’s also available in Blue, Gray, and Pink colorways, and they’re all down to $79.99 shipped with a lighter 20% discount on their usual going rate. Head below for more details.