A personal flotation device that may be worn alone, as well as fitted into a separate garment, such as a jacket or vest. For achieving the greatest possible performance in treatment, the goal is to drive the drum at the highest possible circumferential speed. These extra-systoles must be timed correctly to achieve beneficial effects on myocardial mechanics while maintaining an extremely low level of risk of arrhythmia induction and excellent ICD-like arrhythmia sensing and detection. This indication is recognized by the AIN system, in response to which the quality of service currently present on the Internet for completion of the call is measured. The end band being installed to resist detachment from the portion formed of the first material.