Show up to the party in style with Ice Shaker's Black Speaker Bottle! Ice Shaker & Bumpboxx have teamed up to create a one-of-a-kind speaker bottle that will play your tunes and keep your beverage ice-cold for hours!  Made from high-quality, kitchen-grade stainless steel, the Speaker Bottle holds up to 20oz. with internal measurement lines on the inside of the cup and is double wall vacuum insulated to prevent your bottle from sweating. The twist-on, leak-proof lid features a patented agitator that ensures a perfectly blended drink every time, has a handle built into the lid for easy carrying, and has a pop-top drink spout that's easy to drink from.