Sonim Technologies provides ultra-rugged smartphone solutions for people who work in extreme, hazardous and isolated environments. Sonim devices work in rough, strenuous industries where other products may fail. Designed for mission-critical environments, Sonim cellular devices provide waterproofing to IP68, a dedicated PTT button, extra loud audio, glove touch screen and a very high capacity battery. In addition, Sonim smartphones come with an industry-leading, 3-year comprehensive warranty. Supporting most leading PTT services, Sonim also offers an extensive range of industrial-grade accessories, including headsets and remote speaker microphones.