Washed and sterilized. Used twice. Purchased in May 2025. 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: Select from four presets, use expert-recommended rhythms, or create your own rhythm to enjoy maximum efficiency and comfort (available with free trial). 30% More Output with Hospital-Grade Suction: Up to 300 mmHg of hospital-grade suction with adjustable intensity and cycle speeds helps maximize your milk flow. Note: All skin-contact parts are made from BPA-free, food-grade materials. For optimal suction, sterilize all washable parts by boiling or steaming for 5 minutes before first use. Make sure the duckbill valve, flange tunnel, diaphragm, and pump hub are securely sealed. Ultra-Quiet and Slim for Privacy: Compact, lightweight, and whisper-quiet at 46 dB, this pump is perfect for in-bra use. It's also leakproof with a secure double seal and a reinforced lower half. Note: For suction or heating issues, check the Q&A for quick solutions. For further assistance, contact customer service.