eCase via Amazon offers the Kmashi Bluetooth RGB LED Portable Speaker for $18.99. Coupon code "TPBYMATP" cuts it to $9.99. Plus, Prime members receive free shipping. That's $6 below our March mention and the lowest total price we've seen. (It's the best deal now by $13.) It features Bluetooth 4.0, a 33-foot range, and four LED visual display modes.