Take your coffee, tea, or water on the go with the smartest tumbler around! Sensor puck tracks your fluid intake by syncing via Bluetooth to the free HidrateSpark app, available on iOS and Android Base glows to remind you to drink periodically throughout the day and can be customized by glow color and pattern Connects to other fitness trackers for ultimate integration in your daily routines Stainless-steel construction; Vacuum insulated to keep drinks hot or cold for hours Lid is designed for dual drinking with or without the included removable stainless-steel straw Rechargeable battery and included fast charging cable Fits most car cup holders Eco friendly; Reusable; BPA free Holds 20 oz. Add your custom personalization Gift box included Note: Sensor puck must be removed before cleaning your tumbler; Lid is dishwasher safe; Tumbler is hand wash only; Wipe sensor with damp cloth only; Do not submerge sensor puck in water or place in dishwasher