This is Pigeon's electric breast pump. It comes with a bottle kit set, so you can pump both breasts simultaneously. This one has a battery, so you can use it even where there's no power. It's super convenient. Brand: Pigeon Model Name: Breast Assist Breast Pump Pro Personal R Power Source: Electric (via outlet) & Battery Used a few times, sterilized with Milton, and stored at home. Please refrain from purchasing if you are concerned about this.