1. An AED is a portable device that automatically diagnoses and treats ventricular fibrillation and ventricular tachycardia through defibrillation, allowing the heart to reestablish an effective rhythm. AEDs are designed for layperson use and their use is taught in basic life support classes. 2. MEDIKA focuses on improving hearing aid technology through innovations like patented screw silicon technology that allows for invisible and comfortable fittings without impressions or molding. 3. MEDIKA's strategy is to standardize hearing aid sizes and technologies to gain efficiency while still offering customized solutions for more severe hearing loss cases through integrated silicon aids and 3D scanning.