AnkerDirect via Amazon has two speakers on sale for Amazon US' Deal of the Day today, June 22, 2018, only.
SoundCore Mini: $16.88 (rated 4.5 )
Premium Stereo Speaker: $33.99 (rated 4.3 )
One thing to keep in mind when deciding whether to purchase either of these two speakers is that they are both older models that have been replaced my successors. However, you are still sure to be satisfied with either one.