jammin' tumbler 27oz stainless steel vacuum insulated tumbler Great gift!! JAMMIN’ TUMBLER is drinkware with Bluetooth, FM radio, SD card, and a hands-free phone multifunction waterproof audio entertainment speaker unit attached. Drink container engineered with double-walled vacuumed insulated 304 Stainless Steel constructions. For best results, hand wash with soap, water, and a scratch-free sponge. Copper-lined 18/8 stainless steel construction is durable, and the material won't retain tastes or odors. jammin' tumbler 27oz stainless steel vacuum insulated tumbler Stainless Steel 27oz Vacuum Insulated Coffee Cup ‎1 Count (Pack of 1) Included Components Lid Modern Style Stainless Steel Material Retails for: $64.90