Update: This speaker is back up to a normal price.
Loud and inexpensive. If those are the two qualifiers you need to buy a Bluetooth speaker, the Cambridge Oontz Angle 3 has you covered.
It’s an older Bluetooth speaker that Android Central covered back in 2015, but it is well-known for its booming volume. The AC reviewer said the sounds don’t get distorted at high volumes, either, but rather maintain a pretty rich tone compared to other speakers in this price range.
Even back when it was first released, the Oontz Angle 3 was designed to be inexpensive, but it’s nice to see it at $24, which is its 2nd lowest price ever. The speaker can produce 30 hours of playtime on one battery charge and is water resistant, although I wouldn’t test that too much.