This single electric breast pump, is more comfortable and efficient than a manual breast pump. It is made of high quality food-grade silicone material which is FDA certified and BPA-free and is therefore absolutely safe for the baby. It is equipped with touch sensor button, LED screen, two working modes (massage + suction). The suction can be adjusted to 9 different levels. This breast pump has a Built-in rechargeable lithium battery which can be charged using a USB adaptor. When switched on, the breast pump automatically starts in massage mode for two minutes to help stimulate milk flow and make pumping more comfortable. And you can turn off this function if you don't need. It is very quiet and the sound is less than 40dB during operation, which does not disturb the baby. This pump weighs only 800 grams and can be carried easily anywhere. The package also includes a kit using which the pump can be converted to hand manual mode