Elvie Single Electric Breast Pump.With a coin-sized Piezo pump at its heart, the Elvie Pump is smaller, quieter, and smarter than any other breast pump. Wearable and tucked discreetly in-bra, Elvie Pump is seamlessly controlled from your phone, including our new Smart Rhythm pumping rhythms feature. Customizable for your changing needs, take your pick between three suction patterns, each designed with a different goal in mindwhether its optimizing your milk output or managing nipple sensitivity. That way, you can pump smarter (not harder). Slimmest, most discreet design. Not only is Elvie Pump hands-free and wearable so you can move, but its also the smallest, most slimline all-in-bra breast pump for ultimate discretion. Feel confident pumping anywhere you pleasewhether its with your feet up or at a football game.Quietest, thanks to Piezo-Power.So quiet, you can hear a milk drop. Only Elvie Pump uses powerful, miniature Piezo pumps that create suction using tiny discs moving at 21,000 oscillations per second thats beyond human hearing! And no one can compete with that. Personalized suction to optimize milk output. No feeding journeys the same. Thats why our new Smart Rhythm pumping feature is customizable for your changing needs. Choose from: 1. Multi-Switch for power pumping; 2. Express and Collect for heavier let-down; 3. Slow and Gentle for sensitive nipples. We help you find your rhythm, so you never miss a beat.