eCase via Amazon offers the Kmashi Bluetooth RGB LED Portable Speaker, model no. Arma-K6, for $24.99. Coupon code "9GBU3EQS" cuts it to $15.99. Plus, Prime members receive free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $6.87.) That's $4 below our November mention and the lowest total price we've seen. (It's the best deal now by $4.) It features Bluetooth 4.0, a 33-foot range, and four LED visual display modes.