Harman Audio offers the factory-refurbished JBL Clip+ Splashproof Bluetooth Speaker in Black, Red, or Green for $18.99 with free shipping. That's tied with our January mention and the lowest total price we've seen in any condition. (It's the best deal today by $11 as well.) It features a built-in carabiner, speakerphone function, and rechargeable battery (which supports up to five hours of playtime.) A 1-year JBL warranty applies. Deal ends March 26.