2-phase pumping: stimulation expression, total 25 custom settings for pumping option. Quiet system ideal for discreet pumping, soft silicone cushions for gentle massage and comfortable feeling. Memory function to remember your preferred settings, easy to assemble, operate and clean. Compatible with Medela Pump in style parts and standard neck bottles: Dr. Brown's natural flow. Bellema is committed to providing superior quality breast pumps and breastfeeding accessories to enhance mothers nursing experience. Our design and develop are backed by a dedicated RD team includes over 20 experts. By combining years of expertise and reputation, we have gain trust from nursing mothers around the world.