Upgraded Battery ModelPulsation cycle is about 40~46 times per minute, can saves at least one-half of the labor and time. The milk container is equipped with a check valve that prevents the milk flow into the pump when the milk is full. 5200 mAh Large Capacity Upgraded Rechargeable Battery,it can work fully 3 hours with 5hours charge.Also you can adjust the working frequency of the motor through the knob, to reduce the uncomfortable feeling of cows or goats at high intensity of milk sucking. Healthy&SafeEach part of the milking machine was made of high standard materials, food-grade Silicone Hose, Teat cup liner and Milk Container, Healthy and environmentally friendly, non-toxic and tasteless. 14L CapacityThe milk bucket is 14L, perfect cow milker for milking, storing and transporting fresh goat milk. Folding Handle for Moving AroundThe milk bucket is made of premium 304 stainless steel, easy to clean. Folding handle are on 2 sides and inside. Super convenient to carry and pour out milk. Easy To Set Up & Clean UpQuick installation, plugged in to use, easy to clean with 2 brushes, suitable for people with the least technical experience, can be used in farm, family, etc.