① Before using the Kissbobo Automatic Breast Pump, make sure that all parts are clean and properly assembled. ② Stimulate the nipple and use a nipple ruler to measure the nipple size, and choose to wear a flange that is 1-2MM larger in size than the nipple. ③Adjust the suction level according to the user manual, then gently place the breast pump over the breast to ensure a comfortable seal. ④Turn on the unit for commissioning and start operating at low suction power for a few minutes, then the suction power can be adjusted according to personal comfort.