The HidrateSpark Steel is a vacuum-insulated stainless steel bottle that keeps drinks cold for up to 24 hours. The smart LED sensor puck lights up to remind you to drink and tracks your water intake by syncing via Bluetooth with the HidrateSpark app. The HidrateSpark Steel package includes both a standard lid and a straw lid. The sensor puck can be customized in terms of light pattern and color. It tracks water intake and syncs it via Bluetooth with the free HidrateSpark app. The rechargeable battery comes with a fast charging cable. The bottle is made of stainless steel and is vacuum insulated to keep drinks cold for up to 24 hours, and it is BPA-free. A protective spout cover and lock keep dirt and germs away and prevent spills. Accuracy has been validated by clinical studies from the Mayo Clinic within 3% of manual readings. A carrying strap makes it easy to take along. The bottle and lid are dishwasher safe, while the sensor puck can be cleaned with a damp cloth.