The ME PAD is a layman defibrillator to help during sudden cardiac death. Quickly applied ME PAD saves lifes. The ME PAD can be used at any place. The user gets all the necessary assistance as a voice instruction whereas voice volume is automatically adjusted to the ambient noise. Up to five operations of three hours of duration can be recorded on the internal SD memory card. At any time all the important data such as heart rhythm, energy output, time, etc. are available for the post-analysis. In addition to the automatic power switch while using children pads, the output can be lowered manually. Thus children can be treated in emergency cases even if pediatric electrodes are not available. In daily, weekly and monthly intervals a test program is performed. All functions including battery performance and durability of the electrodes are automatically checked. An alarm will be given in case of errors. The software of ME PAD is programmed according to the current guidelines of the ERC. The user is instructed through the entire resuscitation. The long-life Li-ion battery guarantees a standby time of up to five years or up to 200 shocks at full power.