The painless anaesthesia injection system is innovatively smaller than conventional models. This makes the device highly portable, and it also facilitates easy filling of the ampoules. Moreover, the system is operated with a small controller on the handpiece, unlike customary devices that respond to a foot pedal. The pressure with which the anaesthetic is injected can be adjusted with high precision via a button. Like the operating button, it is located on the product body, at the side of the needle and can be operated easily and safely.