Transcranial Direct Current Stimulation (tDCS) involves applying weak electrical current to the head.

The HDCkit is a modular Transcranial Direct Current Stimulation (tDCS) kit, consisting of a stimulator (HDCstim), a programmer (HDCprog) and a set of electrodes (HDCel). There is also an optional headcap.

The modular system enables the patient/subject to use the stimulator which has been pre-programmed by the clinician using the HDCprog. Minimizing the risk of misuse by the patient/subject.

One HDCprog can be used to program and oversee multiple HDCstim units.