A Medela breast pump is a device designed to help breastfeeding mothers express milk for storage or to provide for their baby. Medela offers various types, including electric (double and single), manual, and hospital-grade pumps, many of which use a research-based 2-Phase Expression technology to mimic a baby's natural sucking rhythm for faster and more efficient milk expression. They come in different models for various needs, such as portable options for pumping on the go and hands-free, wearable pumps for multitasking.