Feature: 1. The screen shows the current gear, intuitive and simple. Lightweight designs of the host, convenient and portable, easy to carry and operate. 2. No operation within five minutes, the suction machine automatically shut down, more intelligent. Special designed for postpartum women. 3. 9 modes designs: 1-3 levels: massage stage, stimulate lactation, 4-6 levels: sucking stage, gentle sucking, 7-9 levels: deep sucking, large suction helps empty the breast. 4. Touches button, gently touches the key to switches gears and functions. 5. During the process of sucking, you can stop at any time, press the stop button within five minutes to continue previous gear, no need resetting. Specification: Condition: 100% Brand New Item Type: Breast Pump Color: White Material: PP / ABS USB interfacePower can be supplied by charger or charging bank .When choosing the adapter, please choose the normal adapter head,1A current size adapter can be.If the current of the selected adapter is less than 1A, the screen will be lit when the suction devices is plugged in, but it cannot be opened. In that case, charging head should be replaced. Package List: 1 x Host 1 x Breast Pump 1 x USB Cable 1 x Straw 1 x Manual 1 x Bottle Cap Note: Everyone has a different constitution, so choose the appropriate strength. If you feel uncomfortable, please stop using it immediately.At the beginning of breast sucking, it is recommended to squeeze one or two drops by hand before using the machine, and then start sucking. a hot towel can be used to warm compress before sucking for more smoothly operation.