Come and see our amazing products. Made of food-grade solid silicone material, all accessories are BPA-free which is safe for every mom and baby. Scientific anti-backflow design can avoid breast milk pollution and motor damage caused by milk backflow, and also help the mother's mammary glands to be unblocked and pain-free. The motor works with low noise and will not wake the babies up. Test noise in the lab below 40dB. Micro-seismic light sound working mode to create an atmosphere of flow vibration and low noise is just like a quiet indoor whisper, which is very quiet Pls confirm with us about the packing info, stock color and exact production time before placing your order