Ok so I will have to go head an invest in another electric pump! This thing is too technical to use on my lunch break and my other pump sessions at work by the time I put together it's time to put back away the hand pump actually suctions better than this one im gonna write a review on Amazon im used to super fast sucking this thing is slow for someone who is sensitive and doesn't like the harsh sucking my nips are tough! I can handle the pinch! 😩