Pro purification – destroys a wide range of bacteria, viruses, and pathogens from your water. The best-in-class performance in pro mode purification features a 99.99999% kill rate for E.coli and a 99.8% kill rate for NTM. Pro-self-cleaning – cleans the bottle automatically every hour. Pro hydration – keeps you hydrated with built-in hydration reminders.  Pro thermal performance – guaranteed to keep contents cold for 24 hrs. And hot for 12 hrs. Pro water-proof – port-less charging technology makes crazy cap pro-ultra-durable against water damage.  Lifetime warranty – 10-year limited lifetime warranty against manufacturer defects.