This is on sale again (sort of). Back in December, a similar device ( Rock Solo ) was on sale for $7 at Staples.
This Pop Solo is the "2nd Gen" as it has a phone holder and the sound is better in quality than the 1st Gen.
You will not be able to search this on Walmart.com.
Discounted to $7 at most Walmarts.
Check your local Wally:
POP SOLO BLACK
POP SOLO ROSE GOLD
I was able to buy several for $5 each at my local Wally