A training device for training a trainee to operate a defibrillator including a housing having a shape which imitates a shape of a defibrillator, a defibrillator function emulation device attached to the housing and configured to emulate a predefined subset of functions of a defibrillator, and electrodes attached to the housing. The trainer defibrillator of the disclosure simulates a real defibrillator, but, due to limited functionality and construction, will be much less expensive than existing trainer defibrillators and will therefore be able to be distributed more widely.
