Breast Pump S1 Pro： The Innovative Heated Wearable Breast Pump: Groundbreaking HeatFlow™ technology prevents clogs and boosts your output by 30%¹. Enjoy high-efficiency pumping with spa-like warmth. Note: 1. Based on actual usage feedback from over 300 eufy pump users. Industry-Leading Wireless Charging Case for Pumping Anywhere: This charging case keeps your pump ready even on the go. With up to five days of power, it ensures hassle-free pumping sessions during business days or weekend getaways. Smart Pumping, Tailored for You: With cutting-edge OptiRhythm™ in the eufy Baby app, customize pumping rhythm, suction, and speed for a truly hands-free experience. Original Diaphragm： Food-Grade Silicone: Made from food-grade silicone, the diaphragm is safe for both mother and baby and durable for repeated use and sterilization. Flexible and Durable: The silicone material offers the flexibility needed to maintain a steady suction while being robust enough to withstand wear and tear over time. Easy to Clean: The smooth surface allows for effortless cleaning and sterilization. Guaranteed Reliability: eufy breast pump accessories are covered by a 90-day limited manufacturer's warranty. Lifespan: Typically lasts 1-3 months. Replace if suction and performance decrease with use and sterilization, or based on your usage.