Meet HidrateSpark PRO, the world’s smartest tumbler ever created. With stainless steel insulated construction, customizable glow colors and patterns, and rechargeable battery, the HidrateSpark PRO makes drinking more water as easy as blink, drink, sync. The LED smart sensor puck glows to remind you when its time to drink and tracks your water, tea, and coffee intake by syncing via bluetooth to the FREE HidrateSpark App, keeping your daily goal updated as you go.Now with three straws!. Design includes a rechargeable battery and comes with a fast charging cable so you never miss a beat!. LED smart sensor puck glows to remind you when its time to drink and tracks your water, tea, coffee intake by syncing via bluetooth to the FREE HidrateSpark App. Lid is designed for dual drinking, with and without the straw. BPA-free, vacuum-insulated stainless steel bottle, keeps drinks hot up to 4 hours and cold up to 14 hours and prevents sweating. Tumbler can be used for Hot and Cold beverages.