With waterproof, dustproof and vibrationproof features, the phone is designed for medium and elderly people. The LCD screen is unbreakable and wear-resistant. The screen is adopted and dimensioned to fill with bigger fonts and more contexts. The elderly with eye degeneration can benefit from the large entries and orange LED background lighting. A bigger hanging hole allows an easy way to affix a lovely or wider cord, which is more reliable. Simplified settings stop unnecessary steps. One dial button is an exclusive SOS button for emergency. A long press on it and it will keep calling the preset number of relatives till it is answered. It saves time and life! Ultra low radiation.