"Cordless design avoids pet chewing and cable tangles Stay hydrated even on trips with 60-day battery life Keeps water fresh with 5-layer filtration Healthy and easy to clean with 304 stainless steel Quiet hydration under 30dB keeps your pet calm Customizable drinking with 3 water modes Extended - Fresh Water for 6 Months (3+8 Extra Filters) Recommended: Replace the filter every 2–3 weeks for healthy drinking water."