NFI-20 is an electrical powered, handheld, light-weighted needle-free injection system. It is very easy to use. Just push the button and injection finishes in half second. It can do multiple and continuous injections without any reloading. Suitable for multiple injections at short period. Dose set upon customer's request, can be changed through different nozzles. Suitable for batch injection for pets. It can also be used for cosmetic injection. It has a disposable sterilized cap on the injection nozzle.