Duo Double Electric Breast Pump Kit Duo (1196042_CS) 6/CSAlthough compact, Motif's Duo breast pump offers plenty of features: For example massage modes that help stimulate let down by mimicking a baby's nursing pattern and expression mode which works to express milk from the breast as efficiently as possible. Pump is a closed system which means backflow protection keeps the quiet motor and tubing clean. Charge so you can use breast pump for up to 2. 5 hours without having to plug in. Easy to read LCD screen