Best Buy through Google Shopping has Ultimate Ears - WONDERBOOM Portable Bluetooth Speaker for $31.99 + tax using NOVSAVE19 (20% off) promo code. Shipping is free.
I bought 2 for 63.98 + tax. They are linkable and they sound pretty decent and very loud together. JBL Flip 4 is a better speaker, but two of those cost ~$120
The Blue bluetooth speaker is still avail. via Best Buy