Brand NEW! The HidrateSpark PRO Smart Water Bottle is the world's smartest water bottle! Stainless Steel vacuum-insulated body keeps drinks cold for up to 24 hours, prevents sweating and allows for a pure water taste. Both variations of lids feature a protective spout cover. The Chug lid includes a button lock to prevent accidental spills. This 100% BPA-free bottle includes an easily accessible rechargeable battery on the bottom of the bottle with a fast charging cable so your bottle can always stay charged while you're on-the-go. This new design also includes an improved sensor technology with clinically proven accuracy within 3% of manual readings through Mayo Clinic trials. Using a built-in sensor, the HidrateSpark PRO bottle tracks your water intake and syncs via Bluetooth to the brand?s FREE hydration app on your phone (available on iOS and Android). When a user falls behind on their hydration goal, LED lights embedded in the sensor puck glow in customizable patterns as a reminder to stay on track. Users also receive reminder notifications throughout the day via the hydration app. Perfect as a gift for friends and family?track each other's progress and make staying hydrated a fun activity! Features Glows remind you to drink Glows throughout the day and can be customized by pattern and color Sensor puck tracks water intake Syncs via Bluetooth to the Free HidrateSpark App, and is interchangeable between bottles Use the free HidrateSpark App Available on iOS and Android Stainless Steel vacuum insulated Keeps drinks cold for up to 24 hours, prevents sweating and allows for a pure water taste Protective spout cover and lock Keeps out dirt germs and prevent spills California Prop 65 Warning - All international buyers are responsible for all tax, duties and/or customs fees.