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. Milk Container： Safe Materials: Made from BPA-free plastic materials, safe for mother and baby. Easy to Clean: Wash with warm, soapy water and rinse well after each use. Dishwasher, fridge, and freezer-safe for quick and easy cleaning. Guaranteed Reliability: eufy breast pump accessories are covered by a 90-day limited manufacturer's warranty. Lifespan: Typically lasts 6 months. Replace if suction and performance decrease with use and sterilization, or based on your usage.