KolorPen is a needle-free injection device that uses piezoelectric energy to break liquids into micro-droplets. These micro-droplets are then inserted into the skin at a high velocity. This method of injection is precise and rapid, and it can be used for a variety of applications, including micro-pigmentation, cosmetic, medical aesthetics, drug delivery, and vaccinations. KolorPen is particularly advantageous for painless and efficient delivery of local anesthetics and medical compositions. In addition to its medical applications, KolorPen can also be used for cosmetic purposes. It provides a precise and comfortable alternative to traditional methods of injection. KolorPen is a versatile and adaptable system that offers features such as wireless control of micro droplet speed, volume, depth, temperature, and dose.