Springs Electronics via eBay offers the Westinghouse Unplug Wireless Bluetooth Speaker
in Ink Black, model no. UM100BK, for $24
with free shipping
. That's $8 under our mention from last winter and the lowest total price we've seen. (It's also a current low by $6.) It features two 40mm drivers, a rechargeable Li-Ion battery with up to 10 hours of playback per charge, and auxiliary input.