The unit is supplied with a protective outer cover, which when opened by the easy sliding switch, automatically turns on. , The defibrillator pads are already connected and ready to use. , LED indicator lights flash with the corresponding voice prompts. Visual icons clarify the necessary actions. , The adult/paediatric mode switch allows the correct setting without changing the pads. The battery is disposable, LiMnO2 Non-rechargeable, with 2 years shelf life, and 5 years standby life. 1 Mediana HeartOn AED A15, 1 Instruction Manual, 1 SD Card, 1 Set Adult/Paediatric Defibrillation Pads, 1 Soft Carry Case