Super Deal Unlimited via eBay offers the refurbished Logitech Ultimate Ears Boom Portable Wireless Bluetooth Speaker in Black for $48.89 with free shipping. That's a buck under our mention from two weeks ago and the lowest price we've seen. (It's the best deal we could find for a refurb now by $31, outside of other eBay sellers.) This wireless speaker features a 3.5mm auxiliary input, NFC, and up to 15 hours of music per charge.

Note: No warranty information is provided.